JP6697095B2 - Communication method and communication device - Google Patents

Description

  Embodiments of the present invention relate to the field of communication, and more specifically to a communication method and a communication device.

  An advanced Long Term Evolution (LTE-A) system can support Carrier Aggregation (CA) and Dual Connectivity (Dual Connectivity) technology. In this technology, a terminal device can perform data communication with another cell after establishing a radio resource control (RRC: Radio Resource Control) connection with one cell, and thereby, between the network and the terminal device. Data transmission efficiency is improved. Specifically, as shown in FIG. 1a, in the downlink direction, a core network (for example, a mobile management entity (MME)) transmits data to a master cell (MeNB) via an S1 interface. The master cell can send some data to the slave cells (SeNB) via the X2 interface in advance, and finally the master cell and the slave cell simultaneously send data to the terminal device. Then, as shown in FIG. 1b, in the uplink direction, the terminal device can transmit data to the slave cell (SeNB) and the master cell (MeNB) respectively, and the slave cell transmits the data to the master cell via the X2 interface. , And finally the master cell sends the data to the core network (for example, Serving Gateway (S-GW: Serving Gateway)) via the S1 interface.

  The next generation mobile communication system (for example, 5G system) is required to provide higher data transmission efficiency, and according to different service needs of terminals, the concept of multi-connection has been proposed in the industry, that is, one wide connection. A macro base station having coverage functions as a control node, another node functions as a transmission node, and a terminal device can simultaneously communicate with the control node and the transmission node to form a multi-connection mode. However, towards the new needs of next generation mobile communication systems, multi-connection technology still faces many unsolved technical challenges.

  Embodiments of the present invention provide a communication method and a communication device capable of improving data transmission efficiency.

  In the communication method according to the first aspect, the control node generates a first transmission arrangement message, and the first transmission arrangement message includes respective transmission arrangement information of at least one first service cell of the terminal device, The transmission arrangement information of each first service cell is transmission technology information and / or physical layer parameter information of at least one transmission arrangement set of each first service cell, and the transmission technology information and / or the physical layer. Transmission resource pool information corresponding to parameter information, the at least one first service cell belonging to a first transmission node, and the control node to the first transmission node to the first transmission arrangement. Sending a message.

  Specifically, the control node can send a first transmission arrangement message to the first transmission node, and the first transmission arrangement message indicates a communication format between the first transmission node and the terminal device. May be used to set Optionally, the first transmission arrangement message may include information of at least one transmission arrangement set of each of the at least one first service cell belonging to the first transmission node.

  Optionally, the transmission arrangement information of each first service cell further comprises respective number information of at least one transmission arrangement set of each first service cell.

  Selectively, the transmission arrangement information of each first service cell further includes activation instruction, deactivation instruction or expiration date information corresponding to each of the at least one transmission arrangement set of each first service cell.

  In the communication method according to the embodiment of the present invention, the control node controls a transmission arrangement for communication between each of the at least one slave service cell and the terminal device, and the transmission arrangement includes at least one transmission arrangement set, Different transmission arrangement sets may correspond to different transmission resource pools, transmission technologies, physical layer parameters or any combination thereof, so that at least one transmission arrangement set of the at least one slave service cell is different from that of the terminal device. The service needs can be met, which improves the overall performance of the system and improves the user experience.

  In a first possible embodiment of the first aspect, the method further comprises the control node sending a second transmission arrangement message to the terminal equipment, the second transmission arrangement message comprising at least one of the terminal equipment. Including at least one transmission arrangement information of each service cell, wherein the at least one service cell includes the at least one first service cell.

  Specifically, the second transmission arrangement message may be used to set a communication format between the terminal device and each of the at least one transmission node of the terminal device, and the at least one transmission node. May include the first transmission node. Optionally, the second transmission arrangement message may include information of at least one transmission arrangement set of each at least one service cell of each of the at least one transmission node. Optionally, the second transmission location message may further include respective identifier information of the at least one transmitting node and / or respective identifier information of the at least one serving cell.

  In combination with the above possible embodiments, in a second possible embodiment of the first aspect, the method further comprises the control node sending a first scheduling message to the first transmitting node, Scheduling message of at least one uplink grant and / or at least one downlink scheduling assignment information for scheduling data transmission between each of the at least one first target serving cell and the terminal device. And including the at least one first serving cell including the at least one first target serving cell.

  Alternatively, the control node may schedule at least one uplink or downlink data transmission between each first target serving cell and the terminal according to the first scheduling message.

  In combination with the above possible embodiments, in a third possible embodiment of the first aspect, the method further comprises the control node sending a second scheduling message to the terminal device, the second scheduling message Includes at least one uplink grant information and / or at least one downlink scheduling allocation information for scheduling data transmission between each of the at least one target serving cell of the terminal device and the terminal device. Including including.

  Selectively, the at least one target service cell comprises the at least one first target service cell, the at least one target service cell being all slave service cells of the terminal device (i.e. the at least one service as above). Part or all of the cells).

  Optionally, the second scheduling message may be used for scheduling uplink and / or downlink data transmission between each of the at least one target transmission node and the terminal, the at least one target The transmission node may be a part or all of all the transmission nodes of the terminal device. Alternatively, the second scheduling message may be used to schedule data transmission between one or more serving cells of the terminal device of the target transmission node and the terminal device.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

  In the communication method according to an embodiment of the present invention, the control node includes at least one cell of each of at least one cell of the plurality of transmission nodes and at least one uplink data transmission and / or at least one downlink data of the terminal device. Scheduling transmissions can improve data transmission efficiency and improve system performance.

  In combination with the above possible embodiments, in a fourth possible embodiment of the first aspect, the method further comprises: before the control node generates the first transmission location message, the control node further comprises the terminal device. A reference signal constellation message to each of the at least one candidate transmission node, the reference signal constellation message including respective downlink reference signal constellation information of at least one candidate serving cell of each candidate transmission node, Including one candidate transmission node including the first transmission node.

  The at least one candidate transmission node of the terminal device may include at least one transmission node described above, and each candidate transmission node may include one or more candidate service cells of the terminal device, the terminal device At least one of the service cells may be selected from the candidate service cell set of the terminal device.

  In combination with the above possible embodiments, in a fifth possible embodiment of the first aspect, the method further comprises: the control node sending a measurement report request to the terminal device, the measurement report request being sent to the terminal device. Of downlink reference signal arrangement information of each of the plurality of candidate service cells, the plurality of candidate service cells belong to at least one candidate transmission node of the terminal device, the control node, the terminal device A measurement report transmitted in response to a measurement report request is received, and the measurement report includes a measurement result obtained by the terminal device measuring a downlink reference signal transmitted from each of the plurality of candidate service cells. And the control node determining at least one service cell of the terminal device from the plurality of candidate service cells based on the measurement report.

  Optionally, the measurement report request may include downlink reference signal constellation information of one or more candidate serving cells of each of the at least one candidate transmission node.

  Alternatively, the control node may further send to the terminal device indication information for indicating the at least one serving cell and / or the node to which the at least one serving cell belongs.

  Selectively, the downlink reference signal constellation information includes at least one of time frequency resource information, code domain resource information, and spatial domain resource information, and the time frequency resource information includes at least one physical resource block information. ..

  Alternatively, the time-frequency resource occupied by the downlink reference signal may be in physical resource block units. Specifically, the downlink reference signal can occupy one or more physical resource blocks in one or more specific subframes.

  In combination with the above possible embodiments, in a sixth possible embodiment of the first aspect, before the control node sends reference signal constellation information to each of the at least one candidate transmission node of the terminal device, The method further comprises: the control node receiving a request message transmitted from the terminal device, the request message including respective identifier information of a plurality of candidate service cells of the terminal device, wherein the identifier information of each candidate service cell is , Is used to indicate that the node type of the candidate transmission node to which each of the candidate service cells belongs is type 1 or type 2, and the type 1 node has the ability to function as a control node. Including that the node does not have the ability to function as a control node, the control node sending a reference signal placement message to each of the at least one candidate transmission node of the terminal means that the control node sends the request message to the request message. And transmitting a reference signal placement message to each of the at least one candidate transmission node of the terminal device.

In combination with the above possible embodiments, in a seventh possible embodiment of the first aspect, the method further comprises: before the control node generates the first transmission location message, the control node further comprises the terminal device. To the control node cell identifier information, and the control node cell identifier information is used to indicate that the control node has the ability to function as a control node. Another communication method is that a first transmission node receives a first transmission arrangement message transmitted from a control node, and the first transmission arrangement message includes at least one first service of the first transmission node. Cell respective transmission arrangement information, the transmission arrangement information of each first service cell each transmission technology information and / or physical layer parameter information of at least one transmission arrangement set of each first service cell, Transmission resource pool information corresponding to the transmission technology information and / or the physical layer parameter information, and the first transmission node based on the first transmission arrangement message, the at least one first service Communicating with the terminal device via a cell.

  Optionally, the transmission arrangement information of each first service cell further comprises respective number information of at least one transmission arrangement set of each first service cell.

  Selectively, the transmission arrangement information of each first service cell further includes activation instruction, deactivation instruction or expiration date information corresponding to each of the at least one transmission arrangement set of each first service cell.

  In a first possible embodiment of the second aspect, the method further comprises the first transmission node receiving a first scheduling message sent from the control node, the first scheduling message being at least one. Information of at least one uplink grant and / or at least one downlink scheduling assignment for scheduling data transmission between each of the two first target service cells and the terminal device, and the at least one A first serving cell including the at least one first target serving cell, the first transmission node based on the first scheduling message via the at least one first target serving cell; Performing data transmission with the terminal device.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

  In combination with the above possible embodiments, in a second possible embodiment of the second aspect, the method is provided before the first transmission node receives a first transmission arrangement message sent from the control node. And further, the first transmission node receives a reference signal constellation message transmitted from the control node, the reference signal constellation message being downlink reference signal constellation information of at least one candidate service cell of the first transmission node. And at least one candidate service cell of the first transmission node includes the at least one first service cell, the first transmission node based on the reference signal placement message Transmitting a downlink reference signal via the candidate serving cell.

  In the above possible embodiment, in the third possible embodiment of the second aspect, the method further comprises: before the first transmission node receives the reference signal constellation message sent from the control node. The first transmission node transmits, to the terminal device, respective identifier information of at least one candidate service cell of the first transmission node, and the identifier information of each candidate service cell is a node of the first transmission node. Used to indicate that the type is type 1 or type 2, the type 1 node has the ability to function as a control node, and the type 2 node does not have the ability to function as a control node. Including showing.

  Another communication method according to the third aspect is that the terminal device receives the second transmission arrangement message transmitted from the control node, and the second transmission arrangement message is transmitted to each of at least one service cell of the terminal device. Including transmission arrangement information, wherein the transmission arrangement information of each service cell is transmission technology information and / or physical layer parameter information of at least one transmission arrangement set of each service cell, and the transmission technology information and / or the physical layer. Transmission source pool information corresponding to the parameter information, and the terminal device communicating with the at least one serving cell based on the second transmission arrangement message.

  Optionally, the transmission arrangement information of each service cell further includes respective number information of at least one transmission arrangement set of each service cell.

  Alternatively, the transmission arrangement information of each service cell further includes an activation instruction, a deactivation instruction or an expiration date information corresponding to each of the at least one transmission arrangement set of each service cell.

  In a first possible embodiment of the third aspect, the method further comprises the terminal receiving a second scheduling message sent from the control node, the second scheduling message comprising at least one target service. At least one serving cell of the terminal device includes at least one uplink grant information and / or at least one downlink scheduling assignment information for scheduling data transmission between each of the cells and the terminal device. It includes including the at least one target service cell, and the terminal device performing data transmission with the at least one target service cell based on the second scheduling message.

  In combination with the above possible embodiments, in a second possible embodiment of the third aspect, the method further comprises: before the terminal device receives a second transmission placement message sent from the control node. The terminal device receives a measurement report request transmitted from the control node, the measurement report request including downlink reference signal arrangement information of each of at least one candidate service cell of the terminal device, and at least one of the terminal devices. That one candidate service cell includes the at least one service cell, and that the terminal device measures a downlink reference signal transmitted from each of the at least one candidate service cell in response to a measurement report request. Including.

  In combination with the above possible embodiments, in a third possible embodiment of the third aspect, the method further comprises: before the terminal receives a measurement report request sent from the control node. Receives the identifier information of at least one cell of each node transmitted from each node of the plurality of nodes, and the identifier information of each cell indicates that the node type of the node to which each cell belongs is type 1 or type 2. Used to indicate that the type 1 node has the ability to function as a control node, the type 2 node does not have the ability to function as a control node, and the plurality of nodes are And including the at least one transmission node, and determining the control node and the at least one transmission node based on identifier information of each cell of the plurality of received cells by the terminal device ..

  In the communication method according to the embodiment of the present invention, the control node arranges the downlink reference signal of each of the plurality of candidate service cells of the terminal device, whereby the transmission of the downlink reference signal of each node can be coordinated, It is advantageous to reduce inter-cell interference and reduce power consumption of nodes.

  In another communication method according to the fourth aspect, a control node generates a reference signal constellation message, and the reference signal constellation message includes downlink reference signal constellation information of each of at least one first candidate service cell of a terminal device. And including the at least one first candidate serving cell belonging to a first candidate transmitting node and the control node transmitting the reference signal placement message to the first candidate transmitting node.

  In a first possible embodiment of the fourth aspect, the method further comprises the control node sending a measurement report request to the terminal device, the measurement report request being each of at least one candidate serving cell of the terminal device. Downlink reference signal arrangement information, the at least one candidate service cell includes the at least one first candidate service cell, and the control node transmits the terminal device in response to the measurement report request. The measurement report is received, the measurement report includes a measurement result obtained by the terminal device measuring downlink reference signals transmitted from each of the at least one candidate service cell, and the control node Determining at least one serving cell of the terminal device from the at least one candidate serving cell based on the measurement report.

  Selectively, the terminal device may have at least one candidate service cell, and the at least one candidate service cell may include at least one first candidate service cell belonging to a first candidate transmission node. ..

  In combination with the possible embodiments described above, in a second possible embodiment of the fourth aspect, the method further comprises the step of the control node before the control node sends a measurement report request to the terminal device. Each of the at least one candidate service cell identifier information transmitted from the candidate service cell is received, and the node type of the candidate transmission node to which each candidate service cell belongs is type 1 or type 2. Used to indicate that the type 1 node has the ability to function as a control node and the type 2 node does not have the ability to function as a control node. Sending the report request includes the control node sending a measurement report request to the terminal device based on the identifier information of each of the at least one candidate serving cell.

  In combination with the above possible embodiments, in a third possible embodiment of the fourth aspect, the method further comprises the control node sending to the terminal device before the control node generates a reference signal constellation message. Including transmitting the control node cell identifier information, which is used to indicate that the control node cell identifier information is capable of functioning as a control node.

  In the above possible embodiment, in the fourth possible embodiment of the fourth aspect, the method further comprises: the control node sending a first scheduling message to the first candidate transmission node; Scheduling message for at least one uplink grant and / or at least one downlink scheduling for scheduling data transmission between each of the at least one first target serving cell of the terminal and the terminal Including allocation information, the at least one first candidate serving cell including the at least one first target serving cell.

  In combination with the above possible embodiments, in a fifth possible embodiment of the fourth aspect, the method further comprises the control node sending a second scheduling message to the terminal device, Includes at least one uplink grant information and / or at least one downlink scheduling allocation information for scheduling data transmission between each of the at least one target serving cell of the terminal device and the terminal device. including.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

  Another communication method according to the fifth aspect is that the first node receives the reference signal arrangement message transmitted from the control node, and the reference signal arrangement message is one of at least one first candidate service cell of the terminal device. Downlink reference signal allocation information, the downlink reference signal allocation information includes at least one of time frequency resource information, code domain resource information, and spatial domain resource information, and the time frequency resource information is at least one. Physical resource block information, the at least one first candidate serving cell belonging to the first node, and the first node based on the reference signal allocation message, the at least one first candidate. Transmitting a downlink reference signal via the serving cell.

  Alternatively, the first node may in particular be the first transmission node or the first candidate transmission node.

  In a first possible embodiment of the fifth aspect, the method further comprises the first node to the terminal device before the first node receives the reference signal constellation message sent from the control node. Transmitting respective identifier information of at least one first candidate service cell, the identifier information of each first candidate service cell indicating that the node type of the first node is type 1 or type 2. , The type 1 node has the ability to function as a control node, and the type 2 node does not have the ability to function as a control node.

  At least one first candidate service cell of the terminal device belongs to the first node.

  In combination with the above possible embodiments, in a second possible embodiment of the fifth aspect, the method further comprises the first node receiving a first scheduling message sent from the control node, the method comprising: The first scheduling message comprises at least one uplink grant information and / or at least one downlink scheduling assignment for scheduling data transmission between each of the at least one first target serving cell and the terminal device. Information, the at least one first candidate serving cell including the at least one first target serving cell, the first node based on the first scheduling message, the at least one first serving cell. Performing data transmission with the terminal device via one target service cell.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

  Another communication method according to a sixth aspect is a terminal device receiving a measurement report request sent from a control node, the measurement report request comprising a downlink reference signal constellation of each of at least one candidate serving cell of the terminal device. Including information, and the terminal device measuring the downlink reference signal transmitted from each of the at least one candidate serving cell in response to the measurement report request.

  In a first possible embodiment of the sixth aspect, the method further comprises: before the terminal device receives the measurement report request sent from the control node, the terminal device each of the at least one candidate serving cell. Of the candidate service cell is used to indicate that the node type of each candidate service cell is type 1 or type 2, and the type 1 node functions as a control node. That the type 2 node does not have the ability to function as a control node, the terminal device transmits a request message to the control node, and the request message is transmitted to the at least one candidate service cell. Including the respective identifier information, the terminal device receives the measurement report request transmitted from the control node means that the terminal device transmits the measurement report request by the control node based on the request message. Including receiving.

  Combined with the possible embodiments described above, in a second possible embodiment of the sixth aspect, the method further comprises: the terminal receiving a second scheduling message sent from the control node, Scheduling message includes at least one uplink grant information and / or at least one downlink scheduling assignment information for scheduling data transmission between at least one target serving cell and the terminal device, and the at least one One candidate serving cell includes the at least one target serving cell.

  In another communication method according to the seventh aspect, a control node generates a first scheduling message, and the first scheduling message schedules data transmission between at least one first target serving cell and a terminal device. Information for at least one uplink grant and / or information for at least one downlink scheduling assignment for said at least one first target serving cell belonging to a first transmission node, and said control node Sending the first scheduling message to the first transmission node.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

  In a first possible embodiment of the seventh aspect, the method further comprises the control node sending a second scheduling message to the terminal device, wherein the second scheduling message is for each of at least one target serving cell. And at least one uplink scheduling information and / or at least one downlink scheduling assignment information for scheduling data transmission between the terminal device and the terminal device, and the at least one target serving cell includes the at least one first serving cell. Including one target service cell.

  Another communication method according to an eighth aspect is that a first transmission node receives a first scheduling message transmitted from a control node, and the first scheduling message includes at least one first scheduling message of the first transmission node. Including at least one uplink grant information and / or at least one downlink scheduling allocation information for scheduling data transmission between each of the one target service cell and the terminal device; and the first transmission The node performs data transmission with the terminal device via the at least one first target service cell based on the first scheduling message.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

  In some aspects of the invention, optionally, the physical layer parameter information comprises at least one of subcarrier spacing, frame structure, chip rate and common control channel placement.

  In some aspects of the invention, optionally, the transmission technology information comprises at least one of duplex and multi-access technology.

  In some aspects of the invention, optionally, the transmission resource pool information comprises at least one of time domain resources, frequency domain resources, code domain resources and spatial domain resources.

  In some aspects of the present invention, optionally, the information of the at least one uplink grant includes number information of a transmission arrangement set corresponding to each of the at least one uplink grant.

  In some aspects of the present invention, optionally, the information of the at least one downlink scheduling assignment includes number information of a transmission constellation set corresponding to each of the at least one downlink scheduling assignment.

  In some aspects of the invention, optionally, the downlink reference signal constellation information comprises at least one of time frequency resource information, code domain resource information and spatial domain resource information, wherein the time frequency resource information is It includes at least one physical resource block information.

  The communication device according to the ninth aspect is used for performing the method of the first aspect or any possible embodiment of the first aspect. In particular, the device may comprise a unit for carrying out the method of the first aspect or any possible embodiment of the first aspect.

  The communication device according to the tenth aspect is used for performing the method of the second aspect or any possible embodiment of the second aspect. In particular, the device may comprise a unit for carrying out the method of the second aspect or any possible embodiment of the second aspect.

  The communication device according to the eleventh aspect is used to perform the method of the third aspect or any possible embodiment of the third aspect. In particular, the apparatus may comprise a unit for carrying out the method of the third aspect or any possible embodiment of the third aspect.

  The communication device according to the twelfth aspect is used for performing the method of the fourth aspect or any possible embodiment of the fourth aspect. Specifically, the apparatus may comprise a unit for carrying out the method of the fourth aspect or any possible embodiment of the fourth aspect.

  The communication device according to the thirteenth aspect is used for performing the method of the fifth aspect or any possible embodiment of the fifth aspect. Specifically, the apparatus may comprise a unit for carrying out the method of the fifth aspect or any possible embodiment of the fifth aspect.

  The communication device according to the fourteenth aspect is used for performing the method of the sixth aspect or any possible embodiment of the sixth aspect. Specifically, the apparatus may comprise a unit for carrying out the method of the sixth aspect or any possible embodiment of the sixth aspect.

  A communication device according to the fifteenth aspect is used to perform the method of the seventh aspect or any possible embodiment of the seventh aspect. Specifically, the apparatus may comprise a unit for carrying out the method of the seventh aspect or any possible embodiment of the seventh aspect.

  The communication device according to the sixteenth aspect is used for performing the method of the eighth aspect or any possible embodiment of the eighth aspect. Specifically, the apparatus may comprise a unit for performing the method of the eighth aspect or any possible embodiment of the eighth aspect.

  A communication device according to a seventeenth aspect comprises a storage unit and a processor, the storage unit is used for storing instructions, the processor is used for executing the instructions stored in the memory, and When the processor executes the instructions stored in the memory, the execution causes the processor to perform the method of the first aspect or any possible embodiment of the first aspect.

  A communication device according to an eighteenth aspect comprises a storage unit and a processor, the storage unit is used for storing instructions, the processor is used for executing instructions stored in the memory, and When the processor executes the instructions stored in the memory, the execution causes the processor to perform the method of the second aspect or any possible embodiment of the second aspect.

  A communication device according to a nineteenth aspect comprises a storage unit and a processor, the storage unit is used for storing instructions, the processor is used for executing the instructions stored in the memory, and When the processor executes the instructions stored in the memory, the execution causes the processor to perform the method of the third aspect or any possible embodiment of the third aspect.

  A communication device according to a twentieth aspect includes a storage unit and a processor, the storage unit is used for storing instructions, the processor is used for executing instructions stored in the memory, and When the processor executes the instructions stored in the memory, the execution causes the processor to perform the method of any possible embodiment of the fourth or third aspects.

  A communication device according to a twenty-first aspect is provided with a storage unit and a processor, the storage unit is used for storing instructions, the processor is used for executing instructions stored in the memory, and When the processor executes the instructions stored in the memory, the execution causes the processor to perform the method of the fifth aspect or any possible embodiment of the fifth aspect.

  A communication device according to a twenty second aspect is provided with a storage unit and a processor, the storage unit is used for storing instructions, the processor is used for executing the instructions stored in the memory, and When the processor executes the instructions stored in the memory, the execution causes the processor to perform the method of the sixth aspect or any possible embodiment of the sixth aspect.

  A communication device according to a twenty-third aspect comprises a storage unit and a processor, the storage unit is used for storing instructions, the processor is used for executing instructions stored in the memory, and When the processor executes the instructions stored in the memory, the execution causes the processor to perform the method of the seventh aspect or any possible embodiment of the seventh aspect.

  A communication device according to a twenty-fourth aspect comprises a storage unit and a processor, the storage unit is used for storing instructions, the processor is used for executing the instructions stored in the memory, and When the processor executes the instructions stored in the memory, the execution causes the processor to perform the method of the eighth aspect or any possible embodiment of the eighth aspect.

  A computer readable medium according to the twenty-fifth aspect is used for storing a computer program, the instructions for carrying out the method of the first aspect or any possible embodiment of the first aspect. including.

  A computer readable medium according to the twenty-sixth aspect is used for storing a computer program, the instructions for performing the method of the second aspect or any possible embodiment of the second aspect. including.

  A computer readable medium according to the twenty-seventh aspect is used for storing a computer program for performing the method of any possible embodiment of the third aspect or second aspect above. Including instructions.

  A computer readable medium according to the twenty-eighth aspect is used for storing a computer program for performing the method of the fourth aspect or any possible embodiment of the fourth aspect. Including instructions.

  A computer readable medium according to the twenty-ninth aspect is used for storing a computer program for carrying out the method of the fifth aspect or any possible embodiment of the fifth aspect. Including instructions.

  A computer readable medium according to the thirtieth aspect is used for storing a computer program, the instructions for carrying out the method of the sixth aspect or any possible embodiment of the sixth aspect. including.

  A computer readable medium according to the thirty-first aspect is used for storing a computer program for carrying out the method of the seventh aspect or any possible embodiment of the seventh aspect. Including instructions.

  A computer readable medium according to the thirty-second aspect is used for storing a computer program for performing the method of the eighth aspect or any possible embodiment of the eighth aspect. Including instructions.

  A communication system according to a thirty-third aspect is the device of any possible embodiment of the ninth aspect or ninth aspect, the device of any possible embodiment of the tenth aspect or tenth aspect and the Apparatus of any possible embodiment of the eleventh aspect or eleventh aspect, or apparatus of any possible embodiment of the twelfth aspect or twelfth aspect, thirteenth aspect or Apparatus of any possible embodiment of the thirteenth aspect and apparatus of any possible embodiment of the fourteenth aspect or fourteenth aspect, or fifteenth aspect or fifteenth aspect Apparatus of any possible embodiment of the sixteenth aspect or apparatus of any possible embodiment of the sixteenth aspect and a terminal device.

FIG. 6 is a schematic diagram of downlink transmission in the conventional dual connection technology. FIG. 3 is a schematic diagram of uplink transmission in a conventional dual connection technology. 1 is a schematic diagram of a wireless communication system applied to an embodiment of the present invention. 3 is a schematic flowchart of a communication method according to an embodiment of the present invention. 7 is another schematic flowchart of a communication method according to an embodiment of the present invention. 7 is another schematic flowchart of a communication method according to an embodiment of the present invention. 5 is a schematic flowchart of a communication method according to another embodiment of the present invention. FIG. 7 is a diagram schematically showing that the control node in the communication method shown in FIG. 6 sets a communication format. FIG. 6 is a schematic diagram of an example of a first transmission arrangement message in the communication method according to the embodiment of the present invention. FIG. 6 is a schematic diagram of an example of a second transmission arrangement message in the communication method according to the embodiment of the present invention. 5 is a schematic flowchart of a communication method according to another embodiment of the present invention. FIG. 11 is a diagram schematically showing that a control node in the communication method shown in FIG. 10 schedules data transmission. FIG. 5 is a schematic diagram of an example of a first scheduling message in the communication method according to the embodiment of the present invention. FIG. 7 is a schematic diagram of an example of a second scheduling message in the communication method according to the embodiment of the present invention. 1 is a schematic block diagram of a communication device according to an embodiment of the present invention. FIG. 6 is a schematic block diagram of a communication device according to another embodiment of the present invention. FIG. 6 is a schematic block diagram of a communication device according to another embodiment of the present invention. FIG. 6 is a schematic block diagram of a communication device according to another embodiment of the present invention. FIG. 6 is a schematic block diagram of a communication device according to another embodiment of the present invention. FIG. 6 is a schematic block diagram of a communication device according to another embodiment of the present invention. FIG. 6 is a schematic block diagram of a communication device according to another embodiment of the present invention. FIG. 6 is a schematic block diagram of a communication device according to another embodiment of the present invention. FIG. 6 is a schematic block diagram of a communication device according to another embodiment of the present invention.

  BRIEF DESCRIPTION OF THE DRAWINGS To describe the technical solutions of the embodiments of the present invention more clearly, the following briefly describes the drawings required in the description of the embodiments of the present invention or the prior art, and of course, the drawings described below. There are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative effort.

Hereinafter, the technical solutions according to the embodiments of the present invention will be clearly and fully described with reference to the accompanying drawings of the embodiments of the present invention, and clearly, the described embodiments are some embodiments of the present invention. Only, not all examples. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention, and shall be understood as the term “system” in the present specification. "Network" is always used interchangeably herein. The term "and / or" is used herein to indicate that there are only three relationships that describe related objects, and that there may be three types of relationships, where A and / or B means that A exists alone. Can be demonstrated, that A and B are present at the same time, and that B is present alone. Further, in the present specification, the character “/” generally indicates that the related objects before and after are in the relationship of “or”.

  FIG. 2 is an architectural diagram of a wireless communication system 100 applicable to the embodiment of the present invention. The wireless communication system 100 includes a global system for mobile communication (abbreviated as "GSM") system, a code division multiple access (abbreviated as "CDMA") system, and a wideband code division multiple access (wideband code). Division Multiple Access, abbreviated as "WCDMA" system, general packet radio service (General Packet Radio Service, abbreviated as "GPRS"), long-term evolution (Long Term Evolution, abbreviated as "LTE") system, LTE frequency division duplex (LTE) Frequency Division Duplex, abbreviated as "FDD" system, LTE Time Division Duplex (abbreviated as "TDD"), Universal Mobile Communication System (abbreviated as Universal Communication "UMT"), A connection microwave access (Worldwide Interoperability for Microwave Access, abbreviated as “WiMax”) communication system or a future 5G system may be used.

  As shown in FIG. 2, the wireless communication system 100 includes a plurality of transmission / reception nodes (TRPs) 110 and a plurality of terminal devices 120. For the sake of simplicity, only two transmission / reception nodes are shown here. In the embodiment of the present invention, the number of transmitting / receiving nodes is not limited. Each transceiver node may provide communication coverage for a particular geographical area, the coverage area of the transceiver node may be divided into multiple smaller areas, each smaller area may be referred to as a cell. .. Although FIG. 2 exemplarily shows that the coverage area of the transmitting / receiving node 110 is divided into three cells 104a, 104b and 104c, in the embodiment of the present invention, one transmitting / receiving node supports one or more cells. However, the embodiments of the present invention are not limited thereto.

  FIG. 2 further shows a plurality of terminals 120 within the coverage of the transmitting and receiving nodes, and for the sake of brevity only one terminal in each cell is shown here by way of example, but in an embodiment of the invention The number of terminal devices is not limited.

  In an embodiment of the present invention, the transmitting / receiving node can connect to the terminal device located within its coverage in a wireless or wired or other manner, and the transmitting / receiving node can support simultaneous transmission of multiple cellular carriers. .. As one selectable example, the transmission / reception node and the terminal device can communicate via an air interface (for example, Uu interface), and the communication link from the transmission / reception node to the terminal device is called a downlink (DL: Downlink). Alternatively, the communication link from the terminal device to the transmission / reception node may be called an uplink (UL: Uplink), and different transmission / reception nodes can communicate with each other via a network interface (for example, an X2 interface).

  In the embodiment of the present invention, the terminal device is an access terminal, a user equipment (UE), a subscriber unit, a subscriber station, a mobile site, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, It may be a wireless communication device, a user agent or a user device. The access terminal includes a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (WLL) site, a personal digital processing (PDA: Persona 1 Digital 1 Assistant), and a wireless communication function. It may be a handheld device, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device and a terminal device in a future 5G network or a terminal device in a future evolved PLMN.

  In the embodiment of the present invention, the transmitting / receiving node may be a device for communicating with a terminal device, and the transmitting / receiving node may be a base station (BTS: Base Transceiver Station) in a GSM system or a CDMA system, It may be a base station (NB: NodeB) in a WCDMA system, an evolved base station (eNB or eNodeB: Evolutionary Node B) in an LTE system, or a radio controller in a cloud wireless access network (CRAN). Alternatively, the node may be a relay station, an access point, an in-vehicle device, a wearable device, a network side device in a future 5G network, or a node in a future evolved PLMN network.

  The wireless communication system 100 may further include other network devices, which are not shown in FIG. 2 for the sake of brevity, but embodiments of the present invention are not limited thereto.

  In the wireless communication system 100, the transmission / reception node can use different transmission techniques (Transmission Scheme), for example, different Duplex Modes, multi-access techniques (Multiple Access Scheme), etc., in the cell managed by the transmission / reception node, and Different physical layer parameters (PHY Parameters) may be used, for example, different subcarrier spacing (Subcarrier Spacing), chip rate (Chip Rate), frame structure, etc. may be used, and the transmitting / receiving nodes may use different time / frequency in one cell. Different transmission technologies and physical layer parameters may be used for resources, and embodiments of the present invention are not limited thereto.

  Also, the wireless communication system 100 can support multi-connection technology, that is, the terminal device can simultaneously maintain connection with a plurality of transmission / reception nodes, and the plurality of transmission / reception nodes can be at least the control node of the terminal device. One transmission node may be included, the control node may have a control plane connection and a data plane connection with the terminal device, and may transmit control signaling and data to the terminal device. Data plane connection can be provided and data can be transmitted to the terminal device, but embodiments of the present invention are not limited thereto. In the embodiment of the present invention, a node that has the ability to function as a control node can be defined as a type 1 node, and a node that does not have the ability to function as a control node can be defined as a type 2. Node can function as a control node or a transmission node or a transmission node, for example, a type 1 node has full radio network protocol functionality, a terminal device and a control plane connection (eg radio resource control (RRC: Radio). Resource Control) connection, and a Type 2 node may act as a transport node only, eg, a Type 2 node may not have full wireless network protocol functionality. , Or because it has limited coverage, it cannot function as a control node, but embodiments of the invention are not so limited.

  Correspondingly, the terminal device may have a plurality of service cells, and the plurality of service cells may include a service cell belonging to the control node and a service cell belonging to the transmission node. For ease of explanation, a service cell belonging to a control node of the terminal device is hereinafter referred to as a master service cell of the terminal device, and a service cell belonging to a transmission node of the terminal device is a slave service cell of the terminal device. However, those skilled in the art will understand that the above names do not constitute any limitation to the embodiments of the present invention.

  It should be understood that the term "cell of a node" may refer to a cell belonging to the node, and likewise the term "serving cell of the node" may specifically refer to a cell belonging to the node, and the cell Is a service cell of some terminal device, that is, a service cell of a terminal device belonging to the node.

  The embodiment of the present invention provides a communication method 200. The method 200 may be applied to various wireless communication systems, for example, the wireless communication system 100 shown in FIG. 2, but embodiments of the present invention are not limited thereto.

  As a selectable embodiment, the control node of the terminal device can set a transmission format or a transmission parameter between at least one slave service cell of the terminal device and the terminal device. In this case, as shown in FIG. 3, the method 200 may include S210 to S214, but embodiments of the present invention are not limited thereto. Specifically, the control node can send a first transmission placement message to a first transmission node of at least one transmission node of the terminal, and the first transmission node sends the first transmission arrangement message to the first transmission node. A transmission arrangement message may include transmission arrangement information of each of at least one first service cell of the first transmission node, the transmission arrangement information being used for communicating with the terminal device. At least one slave service cell of the terminal device may include the at least one first service cell, and the at least one first service cell belongs to the first transmission node.

  In S210, the control node of the terminal device transmits the first transmission arrangement message to the transmission node to which each of the at least one slave service cell of the terminal device belongs.

  The control node of the terminal device can determine at least one slave service cell of the terminal device. Specifically, the control node can determine at least one slave service cell of the terminal device and a transmission node to which each of the at least one slave service cell belongs, that is, the control node can determine at least the terminal device of the terminal device. One transmission node can be defined.

  As one alternative, each node in the network may broadcast respective identifier information of its own at least one cell, eg, the node may include the identifier information of the cell in the synchronization signal, May be used to indicate whether or not the node to which the cell belongs has the ability to function as a control node, for example, if the cell identifier of the cell of the control node belongs to a certain preset identifier range. However, the embodiment of the present invention is not limited to this. Selectively, the terminal device can receive the respective identifier information of at least one cell of each node transmitted from each node of the plurality of nodes in the network, for example, by performing a cell search, It is possible to receive the identifier information of each of the cells and to determine the control node and the master service cell of the terminal device based on the received identifier information of each cell of the plurality of cells. Selectively, the terminal device can determine the node type of the node to which each cell belongs based on the identifier information of each cell of the plurality of received cells, and the node type is a node of type 1. The random access process can be started, and if the random access is successful, the node can function as a control node of the terminal device.

  If the nodes to which the plurality of cells belong include a plurality of nodes having a node type of type 1, the terminal device randomly selects a node from the plurality of nodes having a node type of type 1. The random access process may be started and another node may be randomly selected to perform random access after the random access processor fails, or the terminal device is the terminal device and the node type is type 1. A target node is determined from a plurality of nodes of which the node type is type 1 according to a channel state between the nodes among the plurality of nodes, for example, signal reception quality, signal reception strength, etc. The access process may be initiated, but embodiments of the present invention are not so limited.

  Selectively, the terminal device can determine at least one transmission node and at least one slave service cell of the terminal device based on the received identifier information of each cell of the plurality of cells. The at least one transmission node may include a type 1 / type 2 node. For example, the terminal device may select at least one of the plurality of other nodes from the plurality of other nodes other than the control node among the nodes to which the plurality of cells belong and the channel state between the plurality of other nodes. One transmission node can be defined. In this case, the terminal device can send to the control node indication information for indicating at least one slave service cell and / or a transmission node of the terminal device, and correspondingly the control node At least one slave service cell of the terminal device can be determined based on the instruction information. Alternatively, the terminal device can transmit a request message to the control node, the request message includes identifier information of each candidate slave service cell of the plurality of candidate slave service cells, and the plurality of cells are A plurality of candidate slave service cells, the control node receiving at least one slave service cell of the terminal device and each slave from the plurality of candidate slave service cells after receiving the message transmitted from the terminal device; It is possible to determine the transmission node to which the service cell belongs. Specifically, the terminal device can send a message in the process of accessing the control node or after accessing the control node. For example, the terminal device can send a random access request among the plurality of candidate slave service cells. Although it includes the identifier information of each candidate slave service cell, the embodiment of the present invention is not limited to this.

  When the at least one slave service cell of the terminal device and the transmission node to which each slave service cell belongs are determined (that is, at least one transmission node of the terminal device is determined), the control node is at least one of the terminal devices. A first transmission placement message may be sent to each of the transmission nodes. The first transmission arrangement message transmitted from the control node to the transmission node may include transmission arrangement information of each of at least one slave service cell belonging to the transmission node, the transmission arrangement information including the slave service cell and the slave service cell. It may be used for communication with the terminal device.

  Selectively, the transmission arrangement information of the slave service cell may include respective information of at least one transmission arrangement set of the slave service cell, and the information of each transmission arrangement set corresponds to the transmission arrangement set. Information and / or information of a transmission technology and / or information of a physical layer parameter corresponding to the transmission arrangement set, the transmission resource pool may include transmission resources within a certain range, and the transmission resources may be in the time domain. At least one of a resource, a frequency domain resource, a code domain resource and a spatial domain resource may be included. Specifically, the control node can arrange one or a plurality of transmission arrangement sets in each slave service cell, different transmission arrangement sets can support different transmission arrangements, and different service needs. For example, different transmission arrangement sets may correspond to different transmission resource pools, transmission technologies, physical layer parameters or any combination of the above three, but embodiments of the present invention are not limited thereto. ..

  Optionally, in an embodiment of the invention, the transmission technique may include a duplexing technique and / or a multi-access technique, or may include other parameters such as multi-antenna placement, where the duplexing technique is specific. In addition, frequency division duplex ((Frequency Division Duplex), time division duplex (Time Division Duplex), or device-to-device (D2D: Device to Device) may be used. It may be access (OFDMA: Orthogonal Frequency Division Multiple Access), CDMA, etc. Optionally, the physical layer parameters include at least one of subcarrier spacing, frame structure, chip rate and common control channel allocation. However, the embodiment of the present invention is not limited thereto.

  Optionally, the transmission constellation set information may further include transmission constellation set number information and / or expiration date information. Alternatively, the transmission arrangement information of the slave service cell may further include an activation instruction or a deactivation instruction of each of the at least one transmission arrangement set of the slave service cell, but the embodiment of the present invention is not limited thereto. ..

  Alternatively, the first transmission placement message sent from the control node to the transmission node may further include identifier information of the transmission node. After receiving the first transmission arrangement message, the transmission node determines whether the first transmission arrangement message is its own based on the identifier information of the transmission node included in the first transmission arrangement message. However, the embodiment of the present invention is not limited to this. In this case, the control node can selectably place the communication between the plurality of transmission nodes and the terminal in the same first transmission arrangement message, and selectably broadcast the first transmission arrangement message. Can be sent in the form of. Correspondingly, the transmission node that has received the first transmission arrangement message determines that the first transmission arrangement message is its own based on the identifier information of the transmission node included in the first transmission arrangement message. , And when it is determined that the first transmission arrangement message is its own, based on the information of at least one transmission arrangement set corresponding to the identifier information, itself and the terminal. The transmission arrangement for communicating with the device can be determined, but embodiments of the invention are not so limited.

  In S212, the control node transmits a second transmission arrangement message to the terminal device.

  The second transmission arrangement message may include transmission arrangement information of each of at least one service cell of the terminal device. Among them, the at least one service cell may be specifically all the service cells of the terminal device, that is, the at least one service cell includes a master service cell of the terminal device and at least one slave service cell. Or at least one serving cell may include only some slave serving cells of the terminal device or may not include a master serving cell but only all slave serving cells of the terminal device .. The embodiment of the present invention is not limited to this.

  In S214, the transmission node and the terminal device can respectively receive the first transmission arrangement message and the second transmission arrangement message transmitted from the control node, and can communicate based on the received transmission arrangement message.

  Therefore, in the communication method according to the embodiment of the present invention, the control node controls the transmission arrangement for communication between each of the at least one slave service cell and the terminal device, and the transmission arrangement includes at least one transmission arrangement set. And different transmission arrangement sets may correspond to different transmission resource pools, transmission technologies, physical layer parameters or any combination thereof, whereby at least one transmission arrangement set of the at least one slave service cell is a terminal device. Can meet different service needs, which improves the overall performance of the system and improves the user experience.

  In an embodiment of the present invention, the control node and the transmission node can manage their own transmission resources, that is, the transmission node can schedule their own transmission resources. As another alternative embodiment, the control node may schedule a data transmission between the terminal and at least one slave serving cell of the terminal, in which case the method 200, as shown in FIG. May include S220 to S224, but embodiments of the present invention are not limited thereto. Specifically, the control node of the terminal device can send a first scheduling message to a first transmission node in at least one transmission node of the terminal device, in which the first scheduling message is sent to the first transmission node. At least one uplink grant information for data transmission between the terminal device and at least one first target serving cell of the first transmission node, and / or at least one One downlink scheduling assignment information may be included. The first scheduling message is used for scheduling data transmission between at least one first target serving cell of the first transmission node and the terminal device, of which at least one of the terminal devices. The slave service cell may include at least one first service cell of the first transmission node, the at least one first target service cell being a part of the at least one first service cell. Alternatively, the cells may be all cells, but the embodiments of the present invention are not limited thereto.

  In S220, the control node of the terminal device transmits the first scheduling message to the transmission node to which each of the at least one target service cell of the terminal device belongs.

  Alternatively, the at least one target service cell may specifically be a part or all of all slave service cells of the terminal device, and the at least one target service cell is the terminal. It can belong to at least one transmission node of the device. Alternatively, the first scheduling message sent from the control node to the transmitting node may include at least one uplink grant information and / or at least one downlink scheduling allocation information, the at least one Uplink grant information and / or at least one downlink scheduling assignment information may be used for data transmission between one or more target service cells of the transmission node and a terminal, one of the transmission nodes. Alternatively, the plurality of target service cells may be some or all of the service cells specifically belonging to the terminal device of the transmission node, but the embodiment of the present invention is not limited to this.

  Selectively, the information of the at least one uplink grant may include number information of a transmission arrangement set corresponding to each of the at least one uplink grant. Optionally, the information of the at least one downlink scheduling assignment may include number information of a transmission constellation set corresponding to each of the at least one downlink scheduling assignment. The number of each transmission arrangement set may be pre-defined or may be preset by the control node, for example the control node sets by the first placement message in the above embodiment, which is the Not limited to.

  Optionally, the at least one uplink grant information may further include respective number information of the at least one uplink grant. Optionally, the at least one downlink scheduling assignment information may further include respective number information of the at least one downlink scheduling assignment. Alternatively, if the first scheduling message transmitted from the control node to the transmitting node includes multiple uplink grants and / or multiple downlink scheduling assignments, different uplink grants and / or downlink scheduling assignments are Although different transmission resources or modulation and coding schemes may be supported, for example, different time frequency resources, code domain resources, spatial domain resources, or any combination thereof, the embodiments of the present invention are It is not limited to this.

  Selectively, the first scheduling message sent from the control node to the transmission node may further include identifier information of the transmission node. After receiving the first scheduling message, the transmission node, based on the identifier information of the transmission node included in the first scheduling message, at least one uplink grant and / or scheduled by the first scheduling message. It may be determined whether at least one downlink scheduling assignment is its own, but embodiments of the present invention are not so limited. In this case, the control node can selectably schedule data transmission between a plurality of transmission nodes and a terminal device in the same first scheduling message, and selectably broadcast the first scheduling message. Can be sent in the form of. Correspondingly, the transmission node receiving the first scheduling message schedules its own data transmission based on the transmission node identifier information contained in the first scheduling message. Information of at least one uplink grant corresponding to the identifier information when it is determined that the first scheduling message is used for scheduling its own data transmission. And / or at least one uplink grant and / or downlink scheduling assignment corresponding to itself can be determined based on the information of the downlink scheduling assignment, but embodiments of the present invention are not limited thereto.

  Optionally, the first scheduling message further comprises identifier information of the terminal device. The transmission node, after receiving the first scheduling message, based on the identifier information of the terminal device included in the first scheduling message, the at least one uplink grant and / or the at least one uplink grant scheduled by the first scheduling message. Alternatively, the terminal device corresponding to at least one downlink scheduling assignment can be determined, but the embodiment of the present invention is not limited thereto.

  In S222, the control node sends a second scheduling message to the terminal device.

  The second scheduling message may include information of at least one uplink grant and / or at least one downlink scheduling assignment of each of at least one target serving cell of the terminal device.

  In S224, the transmission node and the terminal device can respectively receive the first scheduling message and the second scheduling message transmitted from the control node, and perform data transmission based on the received scheduling message.

  Therefore, in the communication method according to the embodiment of the present invention, the control node sends a first scheduling message to the transmitting node, the first scheduling message including at least one of each of the at least one target serving cells of the transmitting node. By including the information of the uplink grant and / or the information of at least one downlink scheduling allocation, it is possible to improve data transmission efficiency and improve system performance.

  As another alternative embodiment, the control node may determine at least one candidate slave serving cell of the terminal and arrange a transmission of a downlink reference signal for each of the at least one candidate slave serving cell. it can. In this case, as shown in FIG. 5, the method 200 may include S230 to S234, but embodiments of the present invention are not limited thereto. Specifically, the control node of the terminal device can send a reference signal placement message to a first candidate transmission node in at least one candidate transmission node of the terminal device, in which the first candidate transmission node is included. The reference signal constellation message transmitted to the first candidate transmission node may include respective downlink reference signal constellation information of at least one candidate service cell belonging to the first candidate transmission node, and the plurality of candidate slave service cells of the terminal device are It may include at least one candidate serving cell belonging to the first candidate transmission node. Optionally, the first candidate transmission node may be the same as or different from the first transmission node in the above embodiments, but embodiments of the present invention are not so limited.

  In S230, the control node sends a reference signal allocation message to the transmission node to which each of the plurality of candidate slave service cells of the terminal device belongs.

  The control node can determine a plurality of candidate slave service cells of the terminal device. Selectively, the control node can receive a request message sent from the terminal device, the request message including identifier information of each of a plurality of candidate slave service cells, in which case the control node Based on the respective identifier information of the plurality of candidate slave service cells included in the request message, a part or all of the candidate slave service cells of the plurality of candidate slave service cells are determined as candidate slave service cells of the terminal device. Further, the control node determines the node to which each of the candidate slave service cells belongs, based on the identifier information of each of the plurality of candidate slave service cells of the terminal device, that is, each of the candidate slave service cells The candidate transmission node to which it belongs can be determined, but the embodiment of the present invention is not limited to this.

  When the control node determines a plurality of candidate slave service cells of the terminal device and a candidate transmission node to which each candidate slave service cell belongs, the control node sends a reference signal placement message to each of the at least one candidate transmission node. , The respective transmission of downlink reference signals of at least one candidate slave service cell belonging to each said candidate transmission node can be arranged.

  Alternatively, the reference signal constellation message sent from the control node to the candidate transmission node may include downlink reference signal constellation information for each of the at least one candidate serving cell of the candidate transmission node. Selectively, the downlink reference signal arrangement information of the candidate service cell may include at least one of time frequency resource information, code domain resource information, and space domain resource information, and the time frequency resource information is at least one. The time-frequency resource including the physical resource block information, that is, occupied by the downlink reference signal may be in units of physical resource blocks.

  In S232, the control node transmits a measurement report request to the terminal device.

  The measurement report request may include downlink reference signal allocation information of each of a plurality of candidate service cells of the terminal device, the plurality of candidate cells belonging to at least one candidate transmission node of the terminal device.

  In S234, the candidate transmission node receives the reference signal constellation message transmitted from the control node and transmits a downlink reference signal based on the reference signal constellation message.

  Selectively, the transmission node can determine whether the downlink reference signal transmission is turned on or off based on the reference signal arrangement message, and only when the downlink reference signal transmission is in the ON state, the downlink reference signal is transmitted. Send.

  Further, the terminal device can receive the measurement report request transmitted from the control node, and receives the downlink reference signal transmitted from each of the plurality of candidate service cells in response to the measurement report request. can do. Selectively, the terminal device can measure downlink reference signals transmitted from each of the plurality of candidate service cells and obtain a measurement result for each of the candidate service cells.

  Optionally, in an embodiment of the present invention, the control node can dynamically arrange the switching of the downlink reference signal of each cell of the other node, and the downlink reference signal of the cell is only in some subframes. It is turned on and turned off in another subframe. The terminal device can receive the downlink reference signal transmitted from the cell only with the transmission resource (time-frequency resource, code domain resource or spatial basin resource) corresponding to each cell, which is the embodiment of the present invention. Not limited to.

  Optionally, the method 200 can further include S26 and S238.

  In S236, the terminal device transmits a measurement report to the control node, and the measurement report includes a measurement result obtained by the terminal device measuring the downlink reference signal transmitted from each of the plurality of candidate service cells. ..

  In S238, the control node receives the measurement report transmitted from the terminal device and determines a service cell of the terminal device from the plurality of candidate service cells based on the measurement report, that is, the plurality of candidate service cells. From this, the slave service cell of the terminal device is determined.

  The control node can determine at least one candidate service cell of the plurality of candidate service cells as a slave service cell of the terminal device, and correspondingly determine it as a slave service cell of the terminal device. The candidate transmission node to which the candidate service cell belongs is the transmission node of the terminal device.

  Therefore, in the communication method according to the embodiment of the present invention, the control node can coordinate the transmission of the downlink reference signal of each node by arranging the downlink reference signal of each of the plurality of candidate service cells of the terminal device. This is advantageous in reducing inter-cell interference and reducing node power consumption.

  It should be appreciated that the method 200 may include only the steps of one or more selectable embodiments of each of the selectable embodiments described above, eg, all of the steps described above. However, the embodiment of the present invention is not limited to this.

  Hereinafter, the communication method according to the embodiment of the present invention will be described in more detail in combination with a specific example. It should be noted that these examples are only intended to help those skilled in the art to better understand the embodiments of the present invention, and do not limit the scope of the embodiments of the present invention.

  FIG. 6 is a schematic flowchart of a communication method 300 according to another embodiment of the present invention.

  In S310, the first node whose node type is type 1 transmits a synchronization signal including the identifier information of the first cell, and the second node whose node type is type 2 is the identifier information of the second cell. The sync signal including the signal is transmitted.

  The first cell belongs to a first node, and the identifier information of the first cell indicates that the node type of the first node is type 1, that is, the ability of the first node to function as a control node. May be used to indicate that The second cell belongs to the second node, and the identifier information of the second cell indicates that the node type of the second node is type 2, that is, the ability of the second node to function as a control node. May be used to indicate that it has no.

  Alternatively, the cell identifier information may include a physical cell identifier (PCI) or other identifier, but embodiments of the present invention are not limited thereto.

  In S315, the terminal device may perform a cell search, select and access the first node from the plurality of found nodes belonging to type 1, and establish a connection (eg, RRC connection) with the first node. it can. In this case, the first node can function as a control node of the terminal device.

  Optionally, the first node can establish at least one radio bearer for the terminal according to the quality of service requirements of the terminal.

  In S320, the terminal device can report all or part of the found identifier information to the first node (that is, the control node).

  For example, the terminal device reports the identifier information of the front or a part of the cells found by searching other than the first cell, that is, the identifier information of each cell of at least one node. It may be reported and may include identifier information of cells belonging to a type 1 node and / or identifier information of cells belonging to a type 2 node, for example including identifier information of a second cell. The embodiment of the invention is not limited to this.

  Alternatively, the terminal device can report the identifier information in the process of establishing an RRC connection with the first node or after establishing the RRC connection.

  In S325, the first node receives the cell identifier information of each cell of the at least one node reported from the terminal device, and transmits the reference signal placement message to some or all of the nodes in the at least one node. be able to.

  The reference signal constellation message transmitted from the first node to another node is reference signal constellation information of cells of the other node, for example, at least one of time frequency resource information, code domain resource information and space domain resource information. , The time frequency resource may be in units of physical resource blocks, the code domain resource information may include antenna port information, and the code domain resource information may be used in the downlink reference signal. Code or sequence information may be included to cause the other node to turn on and off the transmission of downlink reference signals or to adjust the placement of downlink reference signals. In this case, the downlink reference signal transmitted from the cell may occupy only one or a plurality of physical resource blocks of some specific subframes, but the embodiment of the present invention is not limited thereto.

  In S330, the first node sends a measurement report request to the terminal device, requesting the terminal device to measure downlink reference signals transmitted from some or all nodes in the at least one node.

  For ease of explanation, some or all of the nodes in the at least one node are hereinafter referred to as at least one candidate transmission node of the terminal device, and cells of the candidate transmission node are referred to as candidate service cells, that is, the The first node sends downlink reference signal arrangement information to each of at least one candidate transmission node of the terminal device. Optionally, the at least one candidate transmission node can include a second node.

  At S335, at least one candidate transmission node including the second node receives the reference signal constellation message transmitted from the first node and transmits a downlink reference signal based on the reference signal constellation message.

  In S340, the terminal device receives the measurement report request transmitted from the first node, and in response to the measurement report request, transmits the downlink reference signal transmitted from at least one candidate transmission node including the second node. It is possible to measure and send the measurement result to the first node.

  In S345, the first node is able to receive the measurement report sent from the terminal device, and according to the measurement report and the respective quality of service requirements of at least one radio bearer of the terminal device, at least one candidate. It is possible to determine one or a plurality of transmission nodes of each radio bearer from the transmission node, that is, one or a plurality of service cells of each radio bearer from at least one candidate service cell of the terminal device.

  In S350, the first node transmits a first transmission arrangement message to some or all transmission nodes in at least one transmission node of the terminal device, and the first transmission arrangement message includes one or more transmission arrangement messages for the terminal device. Including a transmission arrangement set of.

  In S355, the first node transmits a second transmission arrangement message to the terminal device, and the second transmission arrangement message is transmitted to each of the transmission nodes of some or all of the above-mentioned at least one transmission node. It may include transmission arrangement information for the terminal device.

  Optionally, the at least one transmission node can include a second node.

  Selectively, the transmission arrangement information of each transmission node of the second transmission arrangement message may include identifier information of each transmission node.

  In S360, the terminal device receives the second transmission arrangement message transmitted from the first node, and establishes a connection with each transmission node based on the second transmission arrangement message. Also, the second node receives the first transmission arrangement message transmitted from the first node and establishes a connection with the terminal device based on the first transmission arrangement message.

  As one selectable embodiment, as shown in FIG. 7, the first node can set the communication format between the transmission node 1 and the transmission node 2 and the terminal device, in which the transmission node 1 It is possible to arrange a plurality of transmission arrangement sets in each of the transmission node 2 and the transmission node 2 and to arrange a transmission resource pool corresponding to each transmission arrangement set, but the embodiment of the present invention is not limited to this.

  Alternatively, in the embodiment of the present invention, the first transmission arrangement message and the second transmission arrangement message may have the forms shown in FIGS. 8 and 9, respectively, and the first transmission arrangement message is a transmission node. Number of each of the at least one transmission arrangement set, the transmission resource pool and the transmission technology and / or the physical layer parameter of each transmission arrangement set, etc., and the first transmission arrangement is selectable. The message may further include identifier information of the transmitting node. The second transmission arrangement message includes identifier information of each of the plurality of transmission nodes and information of at least one transmission arrangement set of each transmission node, or at least one transmission arrangement set of each service cell of the plurality of service cells. However, the embodiment of the present invention is not limited to this.

  FIG. 10 is a schematic flowchart of a communication method 400 according to another embodiment of the present invention. Among them, S410 to S460 are similar to S310 to S360, and the description is omitted here for the sake of brevity.

  In S465, the terminal device sends a scheduling request to the first node to request uplink data transmission.

  In S470, the first node receives the scheduling request transmitted from the terminal device and, in response to the received scheduling request, a part of at least one transmission node arranged in the terminal device via the network interface. Alternatively, the first scheduling message may be sent to all transmission nodes, and the first scheduling message may include resource scheduling information for the terminal device.

  Alternatively, the resource scheduling information of each transmission node may include one or more DL scheduling assignments (DL SAs) and / or one or more uplink grants (UL Grants), Different DL SAs and UL Grants may correspond to different transmission resources or transmission formats such as modulation and coding schemes.

  Alternatively, the information of each DL SA or UL Grant may include the number information of the DL SA or UL Grant.

  Optionally, some or all of the at least one transmission node can include a second node.

  In S475, the first node may send a second scheduling message to the terminal device via the air interface, and the second scheduling message may include one or more transmission nodes (or one or more services). Cells) and / or uplink grant information.

  Alternatively, the downlink scheduling assignment and / or uplink grant information for each transmission node may include the transmission node identifier information and the downlink scheduling assignment and / or uplink grant number information.

  In S480, the terminal device can receive the second scheduling message transmitted from the first node and perform data transmission based on the second scheduling message. Also, the second node can receive the first scheduling message transmitted from the first node and perform data transmission with the terminal device based on the first scheduling message.

  As one alternative embodiment, as shown in FIG. 11, the first node can schedule data transmission between the transmission node 1 and the transmission node 2 and the terminal device, among which the transmission node 1 and at least one uplink transmission and / or downlink transmission between the transmission node 2 and the terminal device, respectively, may be scheduled, but embodiments of the present invention are not limited thereto.

  Alternatively, in an embodiment of the present invention, the first scheduling message and the second scheduling message may have the forms shown in FIGS. 12 and 13, respectively, wherein the first scheduling message is at least one of the transmitting nodes. Number of one uplink grant and / or at least one downlink scheduling assignment and information such as transmission resources and / or modulation and coding scheme of each uplink grant / downlink scheduling assignment, and optionally, The first scheduling message may further include terminal device identifier information to indicate a terminal device corresponding to the at least one uplink grant and / or at least one downlink scheduling assignment. The second scheduling message includes information of respective identifiers of the plurality of transmission nodes and information of at least one uplink grant and / or at least one downlink scheduling assignment of each transmission node, or at least one of each of the plurality of service cells. Information of an uplink grant and / or at least one downlink scheduling assignment may be included, but embodiments of the present invention are not limited thereto.

  It should be noted that the examples of FIGS. 6 to 13 are for helping those skilled in the art to better understand the embodiments of the present invention, and not for limiting the scope of the embodiments of the present invention. Absent. It will be apparent to those skilled in the art that various equivalent modifications or variations can be made based on the illustrated examples of FIGS. 6 to 13, and such modifications or variations are included in the scope of the embodiments of the present invention.

  It should be understood that the sequence number of each process does not mean the execution order, and the execution order of each process should be determined by their function and unique logic, and the execution process of the embodiment of the present invention should be understood. No limitation should be made to it.

  The communication method according to the embodiment of the present invention will be described in detail in combination with FIGS. 3 to 13 above, and the communication device according to the embodiment of the present invention will be described in detail below in combination with FIG. 14 to FIG.

  FIG. 14 is a schematic block diagram of a communication device 500 according to an embodiment of the present invention. The communication device 500 includes a processing unit 510 and a transmission unit 520 coupled to the processing unit 510.

  In one selectable embodiment, the processing unit 510 is configured to generate a first transmission arrangement message, the first transmission arrangement message being a first transmission node of at least one of the first transmission nodes of the terminal device. Each service arrangement information of one service cell, wherein the transmission arrangement information of each first service cell is transmission technology information and / or physical layer parameters of each at least one transmission arrangement set of each first service cell. Information, and transmission resource pool information corresponding to the transmission technology information and / or the physical layer parameter information, the transmitting unit 520 includes the first transmission arrangement message generated by the processing unit 510 in the first transmission arrangement message. Configured to send to one transmission node.

  Selectively, the physical layer parameter information includes at least one of subcarrier spacing, frame structure, chip rate, and common control channel arrangement.

  Optionally, the transmission technology information includes at least one of duplex and multi-access technology.

  Selectively, the transmission resource pool information includes at least one of a time domain resource, a frequency domain resource, a code domain resource and a spatial domain resource.

  Optionally, the transmission arrangement information of each first service cell further comprises respective number information of at least one transmission arrangement set of each first service cell.

  Selectively, the transmission arrangement information of each first service cell further includes activation instruction, deactivation instruction or expiration date information corresponding to each of the at least one transmission arrangement set of each first service cell.

  Selectively, the transmitting unit 520 is further configured to send a second transmission arrangement message to the terminal device, the second transmission arrangement message being for each transmission arrangement of at least one service cell of the terminal device. Information, wherein the at least one serving cell comprises the at least one first serving cell.

  Optionally, the sending unit 520 is further configured to send a first scheduling message to the first transmission node, the first scheduling message being associated with each of the at least one first target serving cell. Including at least one uplink grant information and / or at least one downlink scheduling allocation information for scheduling data transmission between terminals, wherein the at least one first serving cell comprises the at least one first serving cell One target service cell is included.

  Selectively, the control node sends a second scheduling message to the terminal device, the second scheduling message for data transmission between each of the at least one target serving cell of the terminal device and the terminal device. It includes information on at least one uplink grant and / or information on at least one downlink scheduling for scheduling.

  Selectively, the information of the at least one uplink grant includes number information of a transmission arrangement set corresponding to each of the at least one uplink grant.

  Selectively, the information of the at least one downlink scheduling assignment includes number information of a transmission constellation set corresponding to each of the at least one downlink scheduling assignment.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

  Optionally, the sending unit 520 is further configured to send a reference signal placement message to each of the at least one candidate transmission node of the terminal device before the processing unit 510 generates the first transmission placement message. And the reference signal constellation message includes downlink reference signal constellation information for each of the at least one candidate serving cell of each candidate transmission node, the at least one candidate transmission node including the first transmission node.

  Selectively, the transmitting unit 520 is further configured to send a measurement report request to the terminal device, the measurement report request including downlink reference signal constellation information for each of a plurality of candidate serving cells of the terminal device. , The plurality of candidate service cells belong to at least one candidate transmission node of the terminal device.

In this case, the device 500 is further configured to receive the measurement report transmitted by the terminal device in response to the measurement report request transmitted from the transmission unit 520, the measurement report being transmitted by the terminal device. A first receiving unit including a measurement result obtained by measuring the downlink reference signal transmitted from each of the plurality of candidate service cells,
Correspondingly, the processing unit 510 is further configured to determine at least one serving cell of the terminal device from the plurality of candidate serving cells based on the measurement report received by the first receiving unit. To be done.

  Selectively, the downlink reference signal constellation information includes at least one of time frequency resource information, code domain resource information, and spatial domain resource information, and the time frequency resource information includes at least one physical resource block information. ..

Optionally, the device 500 further receives a request message sent from the terminal device before the sending unit 520 sends reference signal constellation information to each of the at least one candidate transmission node of the terminal device. The request message includes identifier information of each of the plurality of candidate service cells of the terminal device, the identifier information of each candidate service cell is the node type of the candidate transmission node to which each candidate service cell belongs. A second receiving unit, used to indicate 1 or type 2, wherein the type 1 node has the ability to function as a control node and the type 2 node does not have the ability to function as a control node. Equipped with
Correspondingly, the sending unit 520 specifically sends a reference signal placement message to each of at least one candidate transmission node of the terminal device based on the request message received by the second receiving unit. To be configured.

  Selectively, the sending unit 520 is further configured to send the identifier information of the cell of the control node to the terminal device before the processing unit 510 generates the first transmission placement message. The cell identifier information of the node is used to indicate that the control node has the ability to function as a control node.

  In another alternative embodiment, the processing unit 510 is configured to generate a reference signal constellation message, the reference signal constellation message being for each downlink reference of at least one first candidate serving cell of the terminal device. Signal allocation information, the downlink reference signal allocation information includes at least one of time frequency resource information, code domain resource information and space domain resource information, and the time domain resource information is at least one physical resource block information And the at least one first candidate serving cell belongs to the first candidate transmitting node, the transmitting unit 520 sends the reference signal placement message generated by the processing unit 510 to the first candidate transmitting node. Configured to send to.

  Optionally, the transmitting unit 520 is further configured to send a measurement report request to the terminal device, the measurement report request comprising downlink reference signal constellation information for each of the at least one candidate serving cell of the terminal device. And the at least one candidate serving cell comprises the at least one first candidate serving cell.

In this case, the device 500 is further configured to receive the measurement report transmitted by the terminal device in response to the measurement report request transmitted from the transmission unit 520, the measurement report being transmitted by the terminal device. A receiving unit including a measurement result obtained by measuring the downlink reference signal transmitted from each of the at least one candidate serving cell,
Correspondingly, the processing unit 510 is further configured to determine at least one serving cell of the terminal device from the at least one candidate serving cell based on the measurement report received by the receiving unit. ..

Optionally, the receiving unit is further configured to receive the respective identifier information of the at least one candidate serving cell transmitted from the terminal device before the transmitting unit 520 sends a measurement report request to the terminal device. And is used for indicating that the node type of the candidate transmission node to which each candidate service cell belongs is type 1 or type 2, and the type 1 node serves as a control node. Has the ability to function and the type 2 node does not have the ability to function as a control node,
Correspondingly, the sending unit 520 is specifically configured to send a measurement report request to the terminal device based on the respective identifier information of the at least one candidate service cell received by the receiving unit. To be done.

  Optionally, the transmitting unit 520 is further configured to transmit the control node cell identifier information to the terminal device before the processing unit 510 generates a reference signal constellation message. The cell identifier information is used to indicate that the control node has the ability to function as a control node.

  Selectively, the transmitting unit 520 is further configured to transmit a first scheduling message to the first candidate transmission node, the first scheduling message being at least one first target service of the terminal device. The at least one first candidate serving cell including at least one uplink grant information and / or at least one downlink scheduling assignment information for scheduling data transmission between each of the cells and the terminal device. Includes the at least one first target serving cell.

  Selectively, the transmitting unit 520 is further configured to transmit a second scheduling message to the terminal device, the second scheduling message comprising at least one target serving cell of the terminal device and the terminal device. Information for at least one uplink grant and / or information for at least one downlink scheduling assignment for scheduling data transmission between the two.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

  In another alternative embodiment, the processing unit 510 may be configured to generate a first scheduling message, the first scheduling message including at least one first target serving cell and a terminal. Information of at least one uplink grant and / or information of at least one downlink scheduling assignment for scheduling data transmission between the at least one first target serving cell to the first transmitting node. Belonging, the sending unit 520 may be configured to send the first scheduling message generated by the processing unit 510 to the first transmission node.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

  Selectively, the sending unit 520 is further configured to send a second scheduling message to the terminal device, the second scheduling message being between each of the at least one target serving cell and the terminal device. Information of at least one uplink grant and / or information of at least one downlink scheduling assignment for scheduling data transmission, wherein the at least one target service cell comprises the at least one first target service cell ..

  It should be understood that the device 500 herein is embodied in the form of functional units. In one selectable example, one of ordinary skill in the art would appreciate that apparatus 500 may specifically be the control node in the above embodiments, and may implement each process and / or step corresponding to the control node in the above method embodiments. It should be understood that it may be used for implementation, and the description is omitted here to avoid duplication.

FIG. 15 is a schematic block diagram of a communication device 600 according to another embodiment of the present invention. The communication device 600 is
The first transmission arrangement message is configured to receive a first transmission arrangement message transmitted from the control node, the first transmission arrangement message including respective transmission arrangement information of at least one first service cell of the device, The transmission arrangement information of one service cell is transmission technology information and / or physical layer parameter information of each at least one transmission arrangement set of each first service cell, and the transmission technology information and / or the physical layer parameter information. A receiving unit 610 including transmission resource pool information corresponding to
A communication unit 620 configured to communicate with the terminal device via the at least one first service cell based on the first transmission location message received by the receiving unit 610.

  For example, the communication unit 620 can establish a connection, eg a data plane connection, with the terminal device via the at least one first service cell based on the first transmission arrangement message.

  Selectively, the physical layer parameter information includes at least one of subcarrier spacing, frame structure, chip rate, and common control channel arrangement.

  Optionally, the transmission technology information includes at least one of duplex and multi-access technology.

  Selectively, the transmission resource pool information includes at least one of a time domain resource, a frequency domain resource, a code domain resource and a spatial domain resource.

  Optionally, the transmission arrangement information of each first service cell further comprises respective number information of at least one transmission arrangement set of each first service cell.

  Selectively, the transmission arrangement information of each first service cell further includes activation instruction, deactivation instruction or expiration date information corresponding to each of the at least one transmission arrangement set of each first service cell.

  Selectively, the receiving unit 610 is further configured to receive a first scheduling message sent from the control node, the first scheduling message being associated with each of the at least one first target serving cell. Including at least one uplink grant information and / or at least one downlink scheduling allocation information for scheduling data transmission between the terminals, wherein the at least one first serving cell comprises the at least one It includes a first target serving cell.

  In this case, the device 600 is further configured to perform data transmission with the terminal device via the at least one first target service cell based on the first scheduling message received by the receiving unit 610. A data transmission unit.

  Selectively, the information of the at least one uplink grant includes number information of a transmission arrangement set corresponding to each of the at least one uplink grant.

  Optionally, the at least one downlink scheduling message includes transmission arrangement set number information corresponding to each of the at least one downlink scheduling assignment.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

Optionally, the receiving unit 610 is further configured to receive the reference signal placement message sent from the control node before receiving the first transmission placement message sent from the control node, The signal constellation message includes downlink reference signal constellation information of at least one candidate service cell of the first transmission node, wherein at least one candidate service cell of the first transmission node is the at least one first service cell. Including,
Correspondingly, the apparatus 600 is further configured to transmit a downlink reference signal via the at least one candidate serving cell based on the reference signal placement message received by the receiving unit 610. A transmission unit is provided.

  Selectively, the downlink reference signal constellation information includes at least one of time frequency resource information, code domain resource information, and spatial domain resource information, and the time frequency resource information includes at least one physical resource block information. ..

  Optionally, the transmitting unit further informs the terminal device of at least one candidate serving cell of the first transmitting node before the receiving unit 610 receives the reference signal constellation message transmitted from the control node. Each of the candidate serving cells is configured to transmit respective identifier information, and the identifier information of each candidate serving cell is used to indicate that the node type of the first transmission node is type 1 or type 2, The node has the ability to function as a control node, and the type 2 node does not have the ability to function as a control node.

  It should be understood that the device 600 herein is embodied in the form of functional units. In one alternative, one of ordinary skill in the art may understand that the apparatus 600 may specifically be the transmission node in the above embodiments and that each process and / or step corresponding to the transmission node in the above method embodiments may be implemented. It should be understood that it may be used for implementation, and the description is omitted here to avoid duplication.

FIG. 16 is a schematic diagram of a communication device 700 according to another embodiment of the present invention.
The second transmission arrangement message is configured to receive a second transmission arrangement message transmitted from the control node, the second transmission arrangement message including respective transmission arrangement information of at least one service cell of the terminal device, The transmission arrangement information is transmission technology information and / or physical layer parameter information of at least one transmission arrangement set of each service cell, and transmission source pool information corresponding to the transmission technology information and / or the physical layer parameter information. A receiving unit 710 including
A communication unit 720 configured to communicate with the at least one serving cell based on the second transmission location message received by the receiving unit 710.

Selectively, the receiving unit 710 is further configured to receive a second scheduling message transmitted from the control node, the second scheduling message of each of the at least one target serving cell and the terminal device. Including at least one uplink grant information and / or at least one downlink scheduling assignment information for scheduling data transmission between the at least one serving cell of the terminal device and the at least one target serving cell. Including,
Correspondingly, the device 700 further comprises
A data transmission unit configured to perform data transmission with the at least one target service cell based on the second scheduling message received by the receiving unit 710.

Optionally, the receiving unit 710 is further configured to receive the measurement report request sent from the control node before receiving the second transmission location message sent from the control node, the measurement report request Includes downlink reference signal arrangement information of each of at least one candidate service cell of the terminal device, and at least one candidate service cell of the terminal device includes the at least one service cell,
Correspondingly, the apparatus 700 may further measure a downlink reference signal transmitted from each of the at least one candidate serving cell in response to the measurement report request received by the receiving unit 710. It comprises a configured measuring unit.

  Selectively, the downlink reference signal constellation information includes at least one of time frequency resource information, code domain resource information and spatial domain resource information, and the time frequency resource information includes at least one physical resource block information. ..

Selectively, the receiving unit 710 further receives the identifier information of at least one cell of each node transmitted from each node of the plurality of nodes before receiving the measurement report request transmitted from the control node. The ability of the type 1 node to function as a control node, the identifier information of each cell being used to indicate that the node type of the node to which the cell belongs is type 1 or type 2 And the type 2 node does not have the ability to function as a control node, the plurality of nodes including the control node and the at least one transmission node,
Correspondingly, the apparatus 700 is further configured to determine the control node and the at least one transmission node based on the identifier information of each cell of the plurality of cells received by the receiving unit 710. The processing unit is

  It should be understood that the device 700 herein is embodied in the form of functional units. In one selectable example, one of ordinary skill in the art will appreciate that device 700 may specifically be the terminal device in the above embodiments, and may include each process and / or step corresponding to the terminal device in the above method embodiments. It should be understood that it may be used for implementation, and the description is omitted here to avoid duplication.

FIG. 17 is a schematic diagram of a communication device 800 according to another embodiment of the present invention.
Configured to receive a reference signal constellation message transmitted from the control node, the reference signal constellation message including downlink reference signal constellation information for each of the at least one first candidate serving cell of the terminal device; The link reference signal arrangement information includes at least one of time frequency resource information, code domain resource information and space domain resource information, the time domain resource information includes at least one physical resource block information, and the at least one first A receiving unit 810, one candidate serving cell of which belongs to the device;
A transmitting unit 820 configured to transmit a downlink reference signal via the at least one first candidate serving cell based on the reference signal constellation message received by the receiving unit 810.

  Selectively, the transmitting unit 820 further informs the terminal device of respective identifier information of the at least one first candidate serving cell before the receiving unit 810 receives the reference signal constellation message transmitted from the control node. And the identifier information of each first candidate serving cell is used to indicate that the node type of the first node is type 1 or type 2, and the type 1 node is It has the ability to function as a control node, and the type 2 node does not have the ability to function as a control node.

Selectively, the receiving unit 810 is further configured to receive a first scheduling message sent from the control node, the first scheduling message being associated with each of the at least one first target serving cell. Including at least one uplink grant information and / or at least one downlink scheduling assignment information for scheduling data transmission between terminals, wherein the at least one first candidate serving cell comprises the at least one Including a first target serving cell,
Correspondingly, the device 800 further performs data transmission with the terminal device via the at least one first target service cell based on the first scheduling message received by the receiving unit 810. And a data transmission unit configured as described above.

  Selectively, the information of the at least one uplink grant includes number information of a transmission arrangement set corresponding to each of the at least one uplink grant.

  Selectively, the information of the at least one downlink scheduling assignment includes number information of a transmission constellation set corresponding to each of the at least one downlink scheduling assignment.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

  It should be understood that the device 800 herein is embodied in the form of functional units. In one selectable example, the person skilled in the art will understand that the device 800 may specifically be the transmission node in the above embodiment and that each process and / or step corresponding to the transmission node in the above method embodiment is It should be understood that it may be used for implementation, and the description is omitted here to avoid duplication.

FIG. 18 is a schematic diagram of a communication device 900 according to another embodiment of the present invention.
Configured to receive a measurement report request sent from a control node, the measurement report request including downlink reference signal constellation information for each of the at least one candidate serving cell of the terminal device; A receiving unit 910 in which the information includes at least one of time frequency resource information, code domain resource information, and spatial domain resource information, and the time domain resource information includes at least one physical resource block information;
A measurement unit 920 configured to measure a downlink reference signal transmitted from each of the at least one candidate serving cell in response to the measurement report request received by the receiving unit 910.

  Optionally, the receiving unit 910 is further configured to receive respective identifier information of the at least one candidate serving cell prior to receiving the measurement report request sent from the control node, each candidate serving cell Identifier information is used to indicate that the node type of each of the candidate service cells is type 1 or type 2, and the type 1 node has the ability to function as a control node. Does not have the ability to function as a control node.

In this case, the device 900 is further configured to send a request message to the control node, the request message including a respective identifier information of the at least one candidate serving cell received by the receiving unit 910. Equipped with a unit,
Correspondingly, the receiving unit 910 is further configured to receive the measurement report request sent by the control node based on the request message sent from the sending unit.

  Selectively, the receiving unit 910 is further configured to receive a second scheduling message sent from the control node, the second scheduling message being between at least one target serving cell and the terminal device. The information includes at least one uplink grant and / or at least one downlink scheduling assignment for scheduling data transmission, and the at least one candidate service cell includes the at least one target service cell.

  Selectively, the information of the at least one uplink grant includes number information of a transmission arrangement set corresponding to each of the at least one uplink grant.

  Selectively, the information of the at least one downlink scheduling assignment includes number information of a transmission constellation set corresponding to each of the at least one downlink scheduling assignment.

  It should be understood that the device 900 herein is embodied in the form of functional units. In one selectable example, the person skilled in the art will understand that the device 900 may specifically be the terminal device in the above embodiment, and that each process and / or step corresponding to the terminal device in the above method embodiment is It should be understood that it may be used for implementation, and the description is omitted here to avoid duplication.

FIG. 19 is a schematic diagram of a communication device 1000 according to another embodiment of the present invention.
The first scheduling message is configured to receive a first scheduling message sent from the control node, the first scheduling message transmitting data between each of the at least one first target serving cell of the device and the terminal device. A receiving unit 1010 including at least one uplink grant information and / or at least one downlink scheduling assignment information for scheduling,
A data transmission unit 1020 configured to perform data transmission with the terminal device via the at least one first target service cell based on the first scheduling message received by the receiving unit 1010. ..

  It should be understood that the device 1000 herein is embodied in the form of functional units. In one selectable example, the person skilled in the art will understand that the device 1000 may specifically be the transmission node in the above embodiment, and that each process and / or step corresponding to the transmission node in the above method embodiment is It should be understood that it may be used for implementation, and the description is omitted here to avoid duplication.

  It should be understood that the term "unit" herein is used to mean an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (e.g., shared. Processor, proprietary processor or group processor) and memory, combinatorial logic circuits and / or other suitable components supporting the described functionality.

  20 is a schematic block diagram of a communication device 1100 according to an embodiment of the present invention. The communication device 1100 comprises a processor 1110 and a transmitter 1120 coupled to the processor 1110.

  In one selectable embodiment, the processor 1110 is configured to generate a first transmission arrangement message, the first transmission arrangement message being a first transmission node of at least one of the first transmission nodes of the terminals. The transmission arrangement information of each first service cell includes the transmission arrangement information of each service cell, and the transmission technology information and / or physical layer parameter information of each at least one transmission arrangement set of each first service cell. , The transmission resource pool information corresponding to the transmission technology information and / or the physical layer parameter information, and the transmitter 1120 sends the first transmission placement message generated by the processing unit 1110 to the first transmission placement message. It is configured to send to the transmitting node.

  Selectively, the physical layer parameter information includes at least one of subcarrier spacing, frame structure, chip rate, and common control channel arrangement.

  Optionally, the transmission technology information includes at least one of duplex and multi-access technology.

  Selectively, the transmission resource pool information includes at least one of a time domain resource, a frequency domain resource, a code domain resource and a spatial domain resource.

  Optionally, the transmission arrangement information of each first service cell further comprises respective number information of at least one transmission arrangement set of each first service cell.

  Selectively, the transmission arrangement information of each first service cell further includes activation instruction, deactivation instruction or expiration date information corresponding to each of the at least one transmission arrangement set of each first service cell.

  Selectably, the transmitter 1120 is further configured to send a second transmission location message to the terminal device, the second transmission location message being configured to transmit each of the at least one service cell of the terminal device. Information, wherein the at least one serving cell comprises the at least one first serving cell.

  Optionally, the transmitter 1120 is further configured to send a first scheduling message to the first transmission node, the first scheduling message being associated with each of the at least one first target serving cell. Including at least one uplink grant information and / or at least one downlink scheduling allocation information for scheduling data transmission between terminals, wherein the at least one first serving cell comprises the at least one first serving cell One target service cell is included.

  Selectively, the control node sends a second scheduling message to the terminal device, the second scheduling message for data transmission between each of the at least one target serving cell of the terminal device and the terminal device. It includes information on at least one uplink grant and / or information on at least one downlink scheduling for scheduling.

  Selectively, the information of the at least one uplink grant includes number information of a transmission arrangement set corresponding to each of the at least one uplink grant.

  Selectively, the information of the at least one downlink scheduling assignment includes number information of a transmission constellation set corresponding to each of the at least one downlink scheduling assignment.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

  Optionally, the transmitter 1120 is further configured to send a reference signal placement message to each of the at least one candidate transmission node of the terminal device before the processor 1110 generates a first transmission placement message. , The reference signal constellation message includes respective downlink reference signal constellation information of at least one candidate serving cell of each candidate transmission node, the at least one candidate transmission node including the first transmission node.

  Optionally, the transmitter 1120 is further configured to send a measurement report request to the terminal device, the measurement report request including downlink reference signal constellation information for each of a plurality of candidate serving cells of the terminal device. , The plurality of candidate service cells belong to at least one candidate transmission node of the terminal device.

In this case, the device 1100 is further configured to receive a measurement report transmitted by the terminal device in response to the measurement report request transmitted from the transmitter 1120, the measurement report being transmitted by the terminal device. A receiver including measurement results obtained by measuring downlink reference signals transmitted from each of the plurality of candidate service cells,
Correspondingly, the processor 1110 is further configured to determine at least one serving cell of the terminal device from the plurality of candidate serving cells based on the measurement report received by the receiver.

  Selectively, the downlink reference signal constellation information includes at least one of time frequency resource information, code domain resource information, and spatial domain resource information, and the time frequency resource information includes at least one physical resource block information. ..

Optionally, the device 1100 further receives a request message sent from the terminal device before the transmitter 1120 sends reference signal constellation information to each of the at least one candidate transmission node of the terminal device. The request message includes identifier information of each of the plurality of candidate service cells of the terminal device, the identifier information of each candidate service cell is the node type of the candidate transmission node to which each candidate service cell belongs. 1 or type 2 to indicate that the type 1 node has the ability to function as a control node and the type 2 node does not have the ability to function as a control node.
Correspondingly, the transmitter 1120 may specifically send a reference signal placement message to each of the at least one candidate transmission node of the terminal device based on the request message received by the receiver. Composed.

  Optionally, the transmitter 1120 is further configured to send the control node cell identifier information to the terminal device before the processor 1110 generates a first transmission location message. Cell identifier information is used to indicate that the control node has the ability to function as a control node.

  In another alternative embodiment, the processor 1110 is configured to generate a reference signal constellation message, the reference signal constellation message being for each downlink reference signal of at least one first candidate serving cell of the terminal device. The downlink reference signal allocation information includes at least one of time frequency resource information, code domain resource information and space domain resource information, and the time domain resource information includes at least one physical resource block information. Including the at least one first candidate serving cell belongs to the first candidate transmitting node, the transmitter 1120 sends the reference signal constellation message generated by the processor 1110 to the first candidate transmitting node. To be configured.

  Selectably, the transmitter 1120 is further configured to send a measurement report request to the terminal device, the measurement report request comprising downlink reference signal constellation information for each of at least one candidate serving cell of the terminal device. And the at least one candidate serving cell comprises the at least one first candidate serving cell.

In this case, the device 1100 is further configured to receive a measurement report transmitted by the terminal device in response to the measurement report request transmitted from the transmitter 1120, the measurement report being transmitted by the terminal device. A receiver including measurement results obtained by measuring downlink reference signals transmitted from each of the at least one candidate serving cell,
Correspondingly, the processor 1110 is further configured to determine at least one serving cell of the terminal device from the at least one candidate serving cell based on the measurement report received by the receiver.

Optionally, the receiver is further configured to receive the respective identifier information of the at least one candidate serving cell transmitted from the terminal device before the transmitter 1120 sends a measurement report request to the terminal device. And is used for indicating that the node type of the candidate transmission node to which each candidate service cell belongs is type 1 or type 2, and the type 1 node serves as a control node. Has the ability to function and the type 2 node does not have the ability to function as a control node,
Correspondingly, the transmitter 1120 is specifically configured to send a measurement report request to the terminal device based on the respective identifier information of the at least one candidate service cell received by the receiver. To be done.

  Optionally, the transmitter 1120 is further configured to send the control node cell identifier information to the terminal device before the processor 1110 generates a reference signal constellation message, the control node cell Is used to indicate that the control node has the ability to function as a control node.

  Selectively, the transmitter 1120 is further configured to send a first scheduling message to the first candidate transmission node, the first scheduling message being the at least one first target service of the terminal device. The at least one first candidate serving cell including at least one uplink grant information and / or at least one downlink scheduling assignment information for scheduling data transmission between each of the cells and the terminal device. Includes the at least one first target serving cell.

  Selectively, the transmitter 1120 is further configured to send a second scheduling message to the terminal device, the second scheduling message being associated with each of the at least one target serving cell of the terminal device and the terminal device. Information for at least one uplink grant and / or information for at least one downlink scheduling assignment for scheduling data transmission between the two.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

  In another alternative embodiment, the processor 1110 may be configured to generate a first scheduling message, the first scheduling message of at least one first target serving cell and a terminal device. Information of at least one uplink grant and / or information of at least one downlink scheduling assignment for scheduling data transmission between the at least one first target serving cell belonging to the first transmitting node. , The transmitter 1120 may be configured to send the first scheduling message generated by the processor 1110 to the first transmission node.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

  Optionally, the transmitter 1120 is further configured to send a second scheduling message to the terminal device, the second scheduling message being between each of the at least one target serving cell and the terminal device. Information of at least one uplink grant and / or information of at least one downlink scheduling assignment for scheduling data transmission, wherein the at least one target service cell comprises the at least one first target service cell ..

  It should be understood that the device 1100 may specifically be the control node in the above embodiments and may be used to perform the processes and / or steps corresponding to the control nodes in the above method embodiments. .. Optionally, apparatus 1100 can further include memory, which can include read-only memory and random access memory, and provide instructions and data to the processor. The portion of memory may further include non-volatile random access memory. For example, the memory may also store device type information. The processor may be used to execute the instructions stored in the memory, and when the processor executes the instructions, the processor performs the steps corresponding to the terminal device in the method embodiment. be able to.

  21 is a schematic block diagram of a communication device 1200 according to another embodiment of the present invention. The communication device 1200 includes a transceiver 1210 and a processor 1220.

  In one alternative embodiment, the transceiver 1210 is configured to receive a first transmission location message sent from a control node, the first transmission location message being a first transmission location message of at least one of the devices. Transmission arrangement information of each first service cell, the transmission arrangement information of each first service cell includes transmission technology information and / or physical layer parameter information of at least one transmission arrangement set of each first service cell. And the transmission resource pool information corresponding to the transmission technology information and / or the physical layer parameter information, the processor 1220 based on the first transmission arrangement message received by the transceiver 1210. Configured to communicate with the terminal device via one first service cell.

  Selectively, the physical layer parameter information includes at least one of subcarrier spacing, frame structure, chip rate, and common control channel arrangement.

  Optionally, the transmission technology information includes at least one of duplex and multi-access technology.

  Selectively, the transmission resource pool information includes at least one of a time domain resource, a frequency domain resource, a code domain resource and a spatial domain resource.

  Optionally, the transmission arrangement information of each first service cell further comprises respective number information of at least one transmission arrangement set of each first service cell.

  Selectively, the transmission arrangement information of each first service cell further includes activation instruction, deactivation instruction or expiration date information corresponding to each of the at least one transmission arrangement set of each first service cell.

  Optionally, the transceiver 1210 is further configured to receive a first scheduling message sent from the control node, the first scheduling message being associated with each of at least one first target serving cell. Including at least one uplink grant information and / or at least one downlink scheduling allocation information for scheduling data transmission between the terminals, wherein the at least one first serving cell comprises the at least one It includes a first target serving cell.

  In this case, the processor 1220 is further configured to perform data transmission with the terminal device via the at least one first target service cell based on the first scheduling message received by the transceiver 1210. To be done.

  Selectively, the information of the at least one uplink grant includes number information of a transmission arrangement set corresponding to each of the at least one uplink grant.

  Optionally, the at least one downlink scheduling message includes transmission arrangement set number information corresponding to each of the at least one downlink scheduling assignment.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

Optionally, the transceiver 1210 is further configured to receive the reference signal placement message sent from the control node before receiving the first transmission placement message sent from the control node, and the reference The signal constellation message includes downlink reference signal constellation information of at least one candidate service cell of the first transmission node, wherein at least one candidate service cell of the first transmission node is the at least one first service cell. Including,
Correspondingly, the transceiver 1210 is further configured to transmit a downlink reference signal via the at least one candidate serving cell based on the received reference signal constellation message.

  Selectively, the downlink reference signal constellation information includes at least one of time frequency resource information, code domain resource information, and spatial domain resource information, and the time frequency resource information includes at least one physical resource block information. ..

  Selectively, the transceiver 1210 further informs the terminal device of respective identifier information of at least one candidate serving cell of the first transmission node before receiving the reference signal constellation message transmitted from the control node. Is used to indicate that the node type of the first transmission node is type 1 or type 2, and the type 1 node is a control node. , And the type 2 node does not have the ability to function as a control node.

  In another alternative embodiment, the transceiver 1210 receives a reference signal constellation message sent from a control node, the reference signal constellation message for each of at least one first candidate serving cell of the terminal device. Downlink reference signal arrangement information, the downlink reference signal arrangement information includes at least one of time frequency resource information, code domain resource information and spatial domain resource information, and the time domain resource information is at least one physical Downlink reference via the at least one first candidate service cell, which includes resource block information, the at least one first candidate service cell belongs to the device, and is based on the received reference signal constellation message. Configured to transmit a signal.

  The transceiver 1210 is further configured to transmit respective identifier information of the at least one first candidate serving cell to the terminal device before receiving the reference signal constellation message transmitted from the control node. The identifier information of the first candidate serving cell is used to indicate that the node type of the first node is type 1 or type 2, and the type 1 node has the ability to function as a control node. , The type 2 node does not have the ability to function as a control node.

Selectively, the transceiver 1210 is further configured to receive a first scheduling message sent from the control node, the first scheduling message being associated with each of the at least one first target serving cell. Including at least one uplink grant information and / or at least one downlink scheduling assignment information for scheduling data transmission between terminals, wherein the at least one first candidate serving cell comprises the at least one Including a first target serving cell,
Correspondingly, the processor 1220 may perform data transmission with the terminal device via the at least one first target service cell based on the first scheduling message received by the transceiver 1210. Composed.

  Selectively, the information of the at least one uplink grant includes number information of a transmission arrangement set corresponding to each of the at least one uplink grant.

  Selectively, the information of the at least one downlink scheduling assignment includes number information of a transmission constellation set corresponding to each of the at least one downlink scheduling assignment.

  Optionally, the first scheduling message further comprises identifier information of the terminal device.

  In another alternative embodiment, the transceiver 1210 is configured to receive a first scheduling message sent from a control node, the first scheduling message being a first target of at least one of the devices. The processor 1220 includes information of at least one uplink grant and / or at least one downlink scheduling assignment for scheduling data transmission between each of the serving cells and the terminal device, and the processor 1220 includes the transceiver 1210. Is configured to perform data transmission with the terminal device via the at least one first target serving cell based on the first scheduling message received by.

  It should be understood that the device 1200 may specifically be the transmission node in the above embodiments and may be used to perform the processes and / or steps corresponding to the transmission nodes in the above method embodiments. .. Optionally, apparatus 1200 can further include memory, which can include read-only memory and random access memory, and provide instructions and data to the processor. The portion of memory may further include non-volatile random access memory. For example, the memory may also store device type information. The processor may be used to execute the instructions stored in the memory, and when the processor executes the instructions, the processor performs the steps corresponding to the terminal device in the method embodiment. be able to.

  22 is a diagram illustrating a communication device 1300 according to another embodiment of the present invention, which includes a transceiver 1310 and a processor 1320.

  In one alternative embodiment, the transceiver 1310 is configured to receive a second transmission placement message sent from the control node, the second transmission placement message being at least one service of the terminal device. The transmission arrangement information of each service cell includes the transmission arrangement information of each cell, and the transmission arrangement information of each at least one transmission arrangement set of each service cell and / or the physical layer parameter information, and the transmission arrangement information and / or Or the transmission source pool information corresponding to the physical layer parameter information, the processor 1320 to communicate with the at least one serving cell based on the second transmission location message received by the transceiver 1310. Composed.

Selectively, the transceiver 1310 is further configured to receive a second scheduling message transmitted from the control node, the second scheduling message of each of the at least one target serving cell and the terminal device. Including at least one uplink grant information and / or at least one downlink scheduling assignment information for scheduling data transmission between the at least one serving cell of the terminal device and the at least one target serving cell. Including,
Correspondingly, the processor 1320 is further configured to perform data transmission with the at least one target serving cell based on the second scheduling message received by the transceiver 1310.

Optionally, the transceiver 1310 is further configured to receive a measurement report request sent from the control node prior to receiving a second transmission location message sent from the control node, the measurement report The request includes respective downlink reference signal arrangement information of at least one candidate service cell of the terminal device, and at least one candidate service cell of the terminal device includes the at least one service cell,
Correspondingly, the processor 1320 may further measure a downlink reference signal transmitted from each of the at least one candidate serving cell in response to the measurement report request received by the transceiver 1310. Composed.

  Selectively, the downlink reference signal constellation information includes at least one of time frequency resource information, code domain resource information and spatial domain resource information, and the time frequency resource information includes at least one physical resource block information. ..

Selectably, the transceiver 1310 further receives identifier information of at least one cell of each node transmitted from each node of the plurality of nodes before receiving the measurement report request transmitted from the control node. The ability of the type 1 node to function as a control node, the identifier information of each cell being used to indicate that the node type of the node to which the cell belongs is type 1 or type 2 And the type 2 node does not have the ability to function as a control node, the plurality of nodes including the control node and the at least one transmission node,
Correspondingly, the processor 1320 is further configured to determine the control node and the at least one transmission node based on identifier information of each cell of the plurality of cells received by the transceiver 1310. To be done.

  In another alternative embodiment, the transceiver 1310 is configured to receive a measurement report request sent from the control node, the measurement report request being down for each of the at least one candidate serving cell of the terminal device. Link reference signal allocation information, the downlink reference signal allocation information includes at least one of time frequency resource information, code domain resource information and spatial domain resource information, and the time domain resource information is at least one physical resource Including block information, the processor 1320 is configured to measure a downlink reference signal transmitted from each of the at least one candidate serving cell in response to the measurement report request received by the transceiver 1310. ..

Selectively, the transceiver 1310 further receives respective identifier information of the at least one candidate service cell before receiving the measurement report request sent from the control node, and the identifier information of each candidate service cell is , The node type of each of the candidate serving cells is used to indicate that the node type is type 1 or type 2, the type 1 node has the ability to function as a control node, and the type 2 node functions as a control node Have no ability to function,
Sending a request message to the control node, the request message including identifier information for each of the at least one candidate serving cell received by the transceiver 1310;
The control node is configured to receive a measurement report request transmitted based on the request message transmitted from the transceiver.

  Selectively, the transceiver 1310 is further configured to receive a second scheduling message transmitted from the control node, the second scheduling message being between at least one target serving cell and the terminal device. The information includes at least one uplink grant and / or at least one downlink scheduling assignment for scheduling data transmission, and the at least one candidate service cell includes the at least one target service cell.

  Selectively, the information of the at least one uplink grant includes number information of a transmission arrangement set corresponding to each of the at least one uplink grant.

  Selectively, the information of the at least one downlink scheduling assignment includes number information of a transmission constellation set corresponding to each of the at least one downlink scheduling assignment.

  It should be understood that the device 1300 may specifically be the terminal device in the above embodiment, and may be used to perform each process and / or step corresponding to the terminal device in the above method embodiment. .. Optionally, apparatus 1300 can further include memory, which can include read-only memory and random access memory, and provide instructions and data to the processor. The portion of memory may further include non-volatile random access memory. For example, the memory may also store device type information. The processor may be used to execute the instructions stored in the memory, and when the processor executes the instructions, the processor performs the steps corresponding to the terminal device in the method embodiment. be able to.

  It should be understood that in embodiments of the present invention, the processor may be a central processing unit (CPU), which is yet another general purpose processor, digital signal processor (DSP), application specific. It may be an integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

  In the course of implementation, each step of the method may be completed by instructions in the form of hardware integrated logic circuits or software in a processor. The steps of the disclosed method in combination with the embodiments of the present invention may be directly performed by being executed by a hardware processor and completed, or by being executed and completed by a combination of hardware and software modules in the processor. Good. The software modules may be located in mature storage media in the field, such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers and the like. The storage medium is located in memory and the processor executes the instructions in memory and, in combination with its hardware, completes the steps of the above method. The description is omitted here to avoid duplication.

  Those skilled in the art can understand that the method steps and units described in the embodiments disclosed in combination with the present specification may be implemented by electronic hardware, computer software, or a combination of both. In order to clearly describe the compatibility of hardware and software, the steps and configurations of the respective embodiments are generally described according to the functions in the above description. Whether these functions are implemented in hardware or software depends on the particular application of the technical solution and the design requirements. Those skilled in the art can implement the described functionality using different methods for each particular application, but such an implementation should not be considered beyond the scope of the present invention.

  Those skilled in the art can clearly understand that, for convenience and conciseness, specific processes of the above-described system, apparatus and unit can refer to corresponding processes in the method embodiments, and the description thereof will be omitted. ..

  It should be understood that in some embodiments provided by the present application, the disclosed systems, devices and methods may be implemented in other ways. For example, the embodiments of the apparatus described above are only exemplary, for example, the division of the units is only logic functional division, and there may be other division schemes when actually implemented, for example, a plurality of units. Or the components may be combined or integrated into another system, or some features may be ignored or not implemented. Also, the shown or discussed mutual couplings or direct couplings or communication connections may be indirect couplings or communication connections via some interface, device or unit, electrical, mechanical or other form of connection. May be

  The units described as separate members may or may not be physically separate, and the members designated as units may be physical units or physical It may not be a physical unit, ie it may be located in one place, or it may be distributed over multiple network units. Depending on the actual needs, some or all of them can be selected to achieve the objective of the solution of this embodiment.

  In addition, each functional unit of each embodiment of the present invention may be integrated into one processing unit, each unit may physically exist alone, and two or more units may form one unit. It may be integrated into a unit. The above integrated units may be implemented in the form of hardware or software functional units.

  The integrated unit may be stored in one computer-readable storage medium when implemented as a software functional unit and sold or used as an independent product. Based on such an understanding, the technical solution of the present invention may be realized essentially in the form of a software product, or the part contributing to the prior art or the front part or the part of the technical solution is a software product. The computer software product may be implemented in one computer device (which may be a personal computer, a server, or a network device), in whole or in part, according to each embodiment of the present invention. Stored on a storage medium containing several commands for performing the steps of. The storage medium includes various media such as a U disk, a mobile hard disk, a read-only memory (ROM: Read-Only Memory), a random access memory (RAM: Random Access Memory), a magnetic disk, or an optical disk.

  The above are only the optimum embodiments of the present invention, and do not limit the present invention, and there are various kinds of changes and changes in the present invention to those skilled in the art. Any modifications, equivalent replacements, improvements, etc. should be included within the protection scope of the present invention within the spirit and principle of the present invention.

Claims (12)

Communication method,
The control node generates a first transmission arrangement message, the first transmission arrangement message including respective transmission arrangement information of at least one first service cell of the terminal device, and the transmission arrangement of each first service cell. Information is transmission technology information and / or physical layer parameter information of each at least one transmission arrangement set of each of the first service cells, and transmission resource pool information corresponding to the transmission technology information and / or the physical layer parameter information. And that the at least one first service cell belongs to a first transmission node,
Look containing a said control node transmits the first transmission arrangement message to the first transmission node,
The method further comprises: before the control node generates a first transmission location message.
The control node sends a reference signal placement message to each of at least one candidate transmission node of the terminal device, the reference signal placement message being a downlink reference signal of each of at least one candidate serving cell of each candidate transmission node. Including placement information, wherein the at least one candidate transmission node includes the first transmission node,
Before the control node sends a reference signal placement message to each of the at least one candidate transmission node of the terminal device, the method further comprises:
The control node receives a request message transmitted from the terminal device, the request message includes respective identifier information of a plurality of candidate service cells of the terminal device, the identifier information of each candidate service cell, each candidate It is used to indicate that the node type of the candidate transmission node to which the service cell belongs is type 1 or type 2, the type 1 node has the ability to function as a control node, and the type 2 node is a control node. Including not having the ability to function as
The control node sending a reference signal placement message to each of the at least one candidate transmission node of the terminal device,
The control node transmitting a reference signal placement message to each of at least one candidate transmission node of the terminal device based on the request message,
Or, before the control node generates a first transmission placement message, the method further comprises:
The control node transmits the control node cell identifier information to the terminal device, and the control node cell identifier information is used to indicate that the control node has the ability to function as a control node. The communication method comprising: The physical layer parameter information includes at least one of subcarrier spacing, frame structure, chip rate and common control channel arrangement,
The transmission technology information includes at least one of duplex and multi-access technology,
The method of claim 1, wherein the transmission resource pool information includes at least one of a time domain resource, a frequency domain resource, a code domain resource and a spatial domain resource. The transmission arrangement information of each first service cell further includes respective number information of at least one transmission arrangement set of each said first service cell, or
The transmission arrangement information of each first service cell further includes an activation instruction, a deactivation instruction or expiration date information corresponding to each transmission arrangement set of at least one transmission arrangement set of each first service cell. A method according to any one of claims 1-2, characterized. The method further comprises
The control node transmits a second transmission arrangement message to the terminal device, the second transmission arrangement message including respective transmission arrangement information of at least one service cell of the terminal device, and the at least one service cell Comprising the at least one first serving cell. The method further comprises
The control node sends a first scheduling message to the first transmission node, the first scheduling message scheduling data transmission between each of the at least one first target serving cell and the terminal device. Information of at least one uplink grant and / or information of at least one downlink scheduling assignment for the at least one first serving cell including the at least one first target serving cell, and / Or
The control node sends a second scheduling message to the terminal device, the second scheduling message for scheduling data transmission between each of the at least one target service cell of the terminal device and the terminal device. Including at least one uplink grant information and / or at least one downlink scheduling allocation information,
The at least one uplink grant information includes transmission arrangement set number information corresponding to each of the at least one uplink grant,
The at least one downlink scheduling assignment information includes transmission placement set number information corresponding to each of the at least one downlink scheduling assignment,
Alternatively, the first scheduling message further includes identifier information of the terminal device, The method according to any one of claims 1 to 4. The method further comprises
The control node transmits a measurement report request to the terminal device, the measurement report request includes downlink reference signal arrangement information of each of a plurality of candidate service cells of the terminal device, the plurality of candidate service cells are the terminal Belonging to at least one candidate transmission node of the device;
The control node receives a measurement report transmitted by the terminal device in response to the measurement report request, the measurement report, the downlink reference signal transmitted by the terminal device from each of the plurality of candidate service cells Including the measurement results obtained by measurement,
The control node determines at least one service cell of the terminal device from the plurality of candidate service cells based on the measurement report. the method of. The downlink reference signal arrangement information includes at least one of time frequency resource information, code domain resource information, and space domain resource information, and the time frequency resource information includes at least one physical resource block information. The method according to claim 6. Communication method,
The terminal device receives the second transmission arrangement message transmitted from the control node, the second transmission arrangement message includes transmission arrangement information of each of at least one service cell of the terminal device, and transmission of each service cell The arrangement information includes respective transmission technology information and / or physical layer parameter information of at least one transmission arrangement set of each service cell, and transmission source pool information corresponding to the transmission technology information and / or the physical layer parameter information. Including and
Based on the terminal device is the second transmission arrangement message, said saw including and communicating with at least one serving cell,
The method further before the terminal device receives the second transmission arrangement message transmitted from the control node,
The terminal device receives a measurement report request transmitted from the control node, the measurement report request includes respective downlink reference signal arrangement information of at least one candidate service cell of the terminal device, at least the terminal device One candidate serving cell includes the at least one serving cell;
The terminal device, in response to a measurement report request, measuring the downlink reference signal transmitted from each of the at least one candidate serving cell,
The downlink reference signal arrangement information includes at least one of time frequency resource information, code domain resource information and spatial domain resource information, and the time frequency resource information includes at least one physical resource block information,
Before the terminal receives the measurement report request sent from the control node, the method further comprises:
The terminal device receives identifier information of at least one cell of each node transmitted from each node of a plurality of nodes, and the identifier information of each cell is type 1 or a node type of a node to which each cell belongs Used to indicate that it is type 2, the type 1 node has the ability to function as a control node, the type 2 node does not have the ability to function as a control node, and the plurality of nodes are Comprising the control node and the at least one transmission node,
The terminal device determines the control node and the at least one transmission node based on identifier information of each cell of the plurality of received cells . The physical layer parameter information includes at least one of subcarrier spacing, frame structure, chip rate and common control channel arrangement,
The transmission technology information includes at least one of duplex and multi-access technology,
The method of claim 8 , wherein the transmission resource pool information includes at least one of a time domain resource, a frequency domain resource, a code domain resource and a spatial domain resource. The transmission arrangement information of each service cell further includes respective number information of at least one transmission arrangement set of each service cell, or
Transmission arrangement information for each service cell further said at least one activation instruction corresponding to each transmission arrangement set transmission arrangement set for each service cell, according to claim 8, characterized in that it comprises a deactivation instruction or expiration information The method according to any one of 1. The method further comprises: the terminal device receiving a second scheduling message sent from the control node, the second scheduling message scheduling data transmission between each of the at least one target serving cell and the terminal device. Information for at least one uplink grant and / or information for at least one downlink scheduling assignment for the at least one service cell of the terminal device to include the at least one target service cell,
The terminal device performing data transmission with the at least one target service cell based on the second scheduling message,
The at least one uplink grant information includes transmission arrangement set number information corresponding to each of the at least one uplink grant,
Information of the at least one downlink scheduling assignments according to any one of claims 8 to 10, characterized in that it comprises a number information transmission arrangement set corresponding to each of the at least one downlink scheduling assignment Method. A communication device,
Memory and
A processor configured to execute the instructions stored in the memory and to implement the method of any one of claims 8 to 11 ,
The communication device, including: